1996 May 29, Julia A. M. Hayden, “Re: GH:All Alone”, in rec.arts.tv.soaps.abc[1] (Usenet):
who must now go and prevent her 9 pound cat from kicking the catbutts of two 23+ pound cats.
1998 June 3, Erik, “Re: My FINAL reply to Lisa”, in alt.support.depression[2] (Usenet):
> Probably for the same reason people stare at cats' assholes. oh i don't know. catbutts are kinda cute, don't you think?
1998 September 29, Blake, “Re: declawing”, in alt.cats[3] (Usenet):
I have been very conscious of the fact that by declawing her, I rendered her defenseless. However, she has kicked some catbutt when we had intact kitty boarders, not drawing blood, but winning by intimidation.
2000 July 1, Noelle, “Re: Oh Hell..Wonder pill lets women conceive at sixty”, in alt.support.childfree[4] (Usenet):
Hey now, my cats are always sticking their butts in my face to show me what a good job they did cleaning them. I'd rather look at a catbutt than troll leavings any day.
2001 October 7, Kat & Kent [username], “semiRANT! Catbutts!”, in alt.callahans[5] (Usenet):
EVERY SINGLE CAT IN THIS HOUSE HAS STUCK HIS BUTT IN MY FACE!! Do I look depressed? <various Patrons shake their heads> Do I look like I NEED a catbutt in my face?
2002 January 13, Yowie [username], “Considerate [BW][Long]”, in rec.pets.cats.anecdotes[6] (Usenet):
Within a nanosecond of the book becoming a horizontal surface, there was a catbutt firmly planted upon it.
2011, Beth Taylor, Frommer's Seattle Day by Day[7], page 76:
You can buy catbutt refrigerator magnets, clever cards, and fun jewelry and T-shirts by local artists.
2011, Alan Scherstuhl, Studies in Crap, SF Weekly, 1951 Planned Parenthood Pamphlet Pretty Much Says Life Begins at Conception, link
Junior got mom's brown hair and dad's catbutt eyes!