Slang for anal sex, especially when the penis is thrust hard and unexpectedly causing an abrupt opening of the anus.
Damn look at the hiney on her, I'd like to split her ass.

Lisa is walking funny, Matt must have been splitting ass last night.
by Tripod House March 13, 2011
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A phrase used to describe a single, or group of minky.
- Taken from the well known geordie comedian Roy chubby Brown.
- Used to describe the wife/girlfriend.
1) Fukkin hell, chubbsy gets loadsa split-ass now he's a famous CUNT.
2) Is me tea on the table you SPLIT-ASS!?
3) Lets go down 2 the old folks home and get us sum easy split-ass!!!!!!
4) (crowd) YOU FAT BASTARD, YOU FAT BASTARD, YOU FAT BASTARD!...
(Chubbs) ***DANCES*** fUCK OFF!!!
by Adz H January 11, 2006
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1) the act of leaving in a hurry
2) to dance with passion
3) the act of anal sex
1) Man, Lisa really split-ass on us last night
2) Wow Look at that guy split-ass.
3) I think those guys are going to split-ass together tonite.
by douper November 20, 2003
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