[ megabaks@desktop ] ~ $ grep -RHi "pain in the ass" /usr/src/linux-2.6.38-pf3 | wc -l
5
[ megabaks@desktop ] ~ $ grep -RHi "pain in the ass" /usr/src/linux-2.6.38-pf3/include/ | wc -l
0
[ megabaks@desktop ] ~ $ 

 grep -RHi " suck" /usr/src/linux-2.6.38-gentoo-r3/ | wc -l
111

grep -RHi " suck" /usr/src/linux-2.6.36-gentoo-r5/ | wc -l
116

 grep -RHi " suck" /usr/src/linux-2.6.27-openvz-levitan.1/ | wc -l
99

grep -RHi " suck" /usr/src/linux-2.6.35-gentoo-r12/ | wc -l
110          

grep -RH " dick" /usr/src/linux-2.6.36-gentoo-r5/ | wc -l
2

grep -RHi " dick" /usr/src/linux-2.6.36-gentoo-r5/ | wc -l
28

/usr/src/linux/fs/ocfs2/dlm/dlmmaster.c:		/* this may or may not crash, but who cares.
/usr/src/linux/scripts/conmakehash.c:				/* Massive overkill, but who cares? */
/usr/src/linux/drivers/atm/eni.c:	/* JK for AAL5 trailer - AAL0 doesn't need it, but who cares ... */
/usr/src/linux/drivers/net/wireless/ath/ath5k/base.c:		 * but who cares? */
/usr/src/linux/drivers/net/wireless/ath/ath5k/base.c:		 * but who cares? */
/usr/src/linux/drivers/tty/vt/vt_ioctl.c:	/* we mostly copy too much here (512bytes), but who cares ;) */
/usr/src/linux/drivers/block/drbd/drbd_actlog.c:	 * ok, (capacity & 7) != 0 sometimes, but who cares...
/usr/src/linux/drivers/block/drbd/drbd_actlog.c:	/* ok, (capacity & 7) != 0 sometimes, but who cares...
/usr/src/linux/drivers/block/drbd/drbd_actlog.c:	 * ok, (capacity & 7) != 0 sometimes, but who cares...
/usr/src/linux/drivers/media/video/vino.c:		 * but who cares ... */
/usr/src/linux/drivers/staging/comedi/drivers/gsc_hpdi.c:	/*  remap, won't work with 2.0 kernels but who cares */
/usr/src/linux/drivers/staging/comedi/drivers/cb_pcidas64.c:	/*  remap, won't work with 2.0 kernels but who cares */
/usr/src/linux/drivers/staging/brcm80211/brcmfmac/dhd_sdio.c:			 but who cares... */
/usr/src/linux/kernel/audit_tree.c:		/* mark.inode may have gone NULL, but who cares? */
/usr/src/linux/kernel/sched_fair.c:	 * fair sleeper stuff for the first placement, but who cares.
/usr/src/linux/include/linux/ceph/ceph_frag.h: * (We could go to 5+27 bits, but who cares.)

[ megabaks@desktop ] ~ $ grep -RHi "pain in the ass" /usr/src/linux
/usr/src/linux/arch/mips/kernel/process.c: * get_wchan - a maintenance nightmare^W^Wpain in the ass ...
/usr/src/linux/drivers/net/sunhme.h: * But.... THIS THING IS A PAIN IN THE ASS TO PROGRAM!
/usr/src/linux/drivers/media/video/ov7670.c:	 * COM7 is a pain in the ass, it doesn't like to be read then
/usr/src/linux/firmware/keyspan_pda/xircom_pgs.S:	;; *that* is a pain in the ass to encode. And they are little-endian
/usr/src/linux/firmware/keyspan_pda/keyspan_pda.S:	;; *that* is a pain in the ass to encode. And they are little-endian
[ megabaks@desktop ] ~ $ 

$ grep -RHi ' crap ' linux-2.6.38.5/ |wc -l
70

[ megabaks@desktop ] ~ $ grep -RHi " shit" FreeBSD/sys/
FreeBSD/sys/dev/sym/sym_hipd.c:	 *  brain-deaded stuff that makes shit.
FreeBSD/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/dnode.h: * clear that we're joining two strings together, but that piece of shit
FreeBSD/sys/cddl/contrib/opensolaris/uts/common/dtrace/dtrace.c:		 * have this cmn_err() "Holy shit -- we executed this code!")
[ megabaks@desktop ] ~ $

[ megabaks@desktop ] ~ $ grep -RHi " ass " FreeBSD/sys/
FreeBSD/sys/fs/nfsclient/nfs_clstate.c:		 * wild ass guess.
FreeBSD/sys/dev/ral/rt2661.c:	/* kick 8051's ass */
[ megabaks@desktop ] ~ $

[ megabaks@desktop ] ~ $ grep -RHi " suck" FreeBSD/sys/
FreeBSD/sys/dev/si/si.c:			 * Suck characters out of host card buffer into the
FreeBSD/sys/dev/sn/if_snreg.h:/* When packets are stuffed into the card or sucked out of the card
FreeBSD/sys/dev/xe/if_xe.c:		/* Suck a packet off the send queue */
FreeBSD/sys/dev/aac/aac.c:				 * actually sucks a whole lot.
FreeBSD/sys/dev/ata/ata-all.c:	mtx_lock(&Giant);       /* newbus suckage it needs Giant */
FreeBSD/sys/dev/ata/ata-all.c:	mtx_unlock(&Giant);     /* newbus suckage dealt with, release Giant */
FreeBSD/sys/dev/ata/ata-all.c:    mtx_lock(&Giant);       /* newbus suckage it needs Giant */
FreeBSD/sys/dev/ata/ata-all.c:    mtx_unlock(&Giant);     /* newbus suckage dealt with, release Giant */
FreeBSD/sys/dev/ips/ips.c:			   would go to the card. This sucks. */
FreeBSD/sys/dev/lge/if_lge.c:	/* Suck them in. */
FreeBSD/sys/dev/mse/mse_isa.c:				/* sucker.				*/
FreeBSD/sys/dev/ofw/openpromio.c: * are implemented.  The interface sucks too much to actually use,
FreeBSD/sys/dev/acpica/acpi_pcib_acpi.c:     * Hardcoding like this sucks, so a more MD/MI way needs to be
FreeBSD/sys/dev/atkbdc/psm.c: * This sucks up assignments from PNPBIOS and ACPI.
FreeBSD/sys/dev/aic7xxx/aic79xx.c:	 * Handle the 'black hole' device that sucks up
FreeBSD/sys/dev/aic7xxx/aic7xxx.c:	 * Handle the 'black hole' device that sucks up
FreeBSD/sys/dev/advansys/advansys.c:	/* Suck in the configuration from the EEProm */
FreeBSD/sys/dev/cardbus/cardbus_cis.c:	/* Make this message suck less XXX */
FreeBSD/sys/sys/mbuf.h:/* XXX: These includes suck. Sorry! */
FreeBSD/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zil.c:	 * If this is a TX_WRITE with a blkptr, suck in the data.
FreeBSD/sys/boot/common/module.c: * We've been asked to load (name) as (type), so just suck it in,
FreeBSD/sys/i386/isa/npx.c: * This sucks up the legacy ISA support assignments from PNPBIOS/ACPI.
FreeBSD/sys/i386/pci/pci_bus.c:     * Hardcoding like this sucks, so a more MD/MI way needs to be
FreeBSD/sys/i386/svr4/svr4_genassym.c:/* XXX: This bit sucks rocks, but gets rid of compiler errors.  Maybe I should
FreeBSD/sys/i386/ibcs2/ibcs2_misc.c: * Read iBCS2-style directory entries.  We suck them into kernel space so
FreeBSD/sys/geom/journal/g_journal.c:	/* Pick a conservative value if provided value sucks. */
FreeBSD/sys/kern/kern_malloc.c:	/* Pick a conservative value if provided value sucks. */
FreeBSD/sys/contrib/ipfilter/netinet/fil.c:	 * The above really sucks, but short of writing a diff
FreeBSD/sys/amd64/pci/pci_bus.c:     * Hardcoding like this sucks, so a more MD/MI way needs to be
FreeBSD/sys/amd64/amd64/fpu.c: * This really sucks.  We want the acpi version only, but it requires
FreeBSD/sys/amd64/amd64/fpu.c: * This sucks up the legacy ISA support assignments from PNPBIOS/ACPI.
FreeBSD/sys/sun4v/sun4v/exception.S:	 * This is used to suck up the massive swaths of reserved trap types.
FreeBSD/sys/sparc64/sparc64/exception.S:	 * This is used to suck up the massive swaths of reserved trap types.
FreeBSD/sys/compat/svr4/svr4_misc.c: * Read SVR4-style directory entries.  We suck them into kernel space so
FreeBSD/sys/netinet/sctp_pcb.c:	 * and not suck up any kernel memory in that.
[ megabaks@desktop ] ~ $

[ megabaks@desktop ] ~ $ grep -RHi " crap" FreeBSD/sys/
FreeBSD/sys/fs/nfsserver/nfs_nfsdstate.c:		 *  server to crap out, if they get past the Init call to
FreeBSD/sys/dev/xe/if_xe.c: * Note that the crappy PIO used to get packets on and off the card means that 
FreeBSD/sys/dev/ata/chipsets/ata-cypress.c:     * doesn't work with the crappy ATA interrupt setup on the alpha.
FreeBSD/sys/dev/ata/ata-usb.c:	/* uint8_t    crap[60]; */
FreeBSD/sys/gnu/dev/sound/pci/maestro3_reg.h:/* XXX fix this crap up */
FreeBSD/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zio_compress.c:	/* For security, make sure we don't write random heap crap to disk */
FreeBSD/sys/contrib/pf/net/pf.c:		 * the crappy stack check or if we picked up the connection
FreeBSD/sys/contrib/ipfilter/netinet/ip_irc_pxy.c:	 * security crap.
FreeBSD/sys/contrib/ipfilter/netinet/ip_ftp_pxy.c:	 * security crap.
FreeBSD/sys/compat/ndis/ntoskrnl_var.h:	 * anyway, I'm not going to bother with the extra crap.
[ megabaks@desktop ] ~ $

[ megabaks@desktop ] ~ $ grep -RHi "\<ass\>" /usr/src/linux | wc -l
51
[ megabaks@desktop ] ~ $ 

$ . kernel.sh 
/usr/src/linux-2.6.38-ARCH:
suck: 1
crazy: 1
f*ck: 0
shit: 0
ass: 0
but who cares: 2

$ cat kernel.sh 
#!/bin/bash
kerneldir=/usr/src/linux-`uname -r`
echo "$kerneldir:"
echo "suck: `grep -RHi " suck" $kerneldir | wc -l`"
echo "crazy: `grep -RHi " crazy" $kerneldir | wc -l`"
echo "f*ck: `grep -RHi " fuck" $kerneldir | wc -l`"
echo "shit: `grep -RHi " shit" $kerneldir | wc -l`"
echo "ass: `grep -RHi " ass " $kerneldir | wc -l`"
echo "but who cares: `grep -RHi "but who cares" $kerneldir | wc -l`"

[ megabaks@desktop ] ~ $ grep -RHi " suck" /usr/src/linux-2.6.38-pf6 | wc -l
0
[ megabaks@desktop ] ~ $ grep -RHi " suck" /usr/src/linux-2.6.38-pf3 | wc -l
111
[ megabaks@desktop ] ~ $ grep -RHi " suck" /usr/src/linux-2.6.38-pf7 | wc -l
111
[ megabaks@desktop ] ~ $ 

[ megabaks@desktop ] ~ $ du -sh /usr/src/linux-2.6.38-pf3/
476M	/usr/src/linux-2.6.38-pf3/
[ megabaks@desktop ] ~ $ 

$ du -sh /usr/src/linux-`uname -r`
46M	/usr/src/linux-2.6.38-ARCH

$ sh kernel.sh /usr/src/linux-2.6.38
/usr/src/linux-2.6.38:
suck: 111
crazy: 58
f*ck: 30
shit: 28
ass: 12
but who cares: 16

$du -sh /usr/src/linux-2.6.38
475M	/usr/src/linux-2.6.38

grep -RHi "\<wtf\>" FreeBSD/sys/
FreeBSD/sys/dev/dc/if_dc.c:			 * even when the carrier is there. wtf?!?
FreeBSD/sys/dev/mwl/mwlhal.h: * XXX wtf?
FreeBSD/sys/dev/ciss/ciss.c:     * boot in "queued for expansion" mode.  WTF?
FreeBSD/sys/dev/hptrr/amd64-elf.hptrr_lib.o.uu:M``")WTF)Q.@`````3(GG2(G#Z$_4__](B=],BV0D$$B+7"0(2(/$&.E)T___