shat brack 

Taking a raucous shit...an overly abrasive boom boom session. Usually happens after eating or drinking too much of one sketch product. Sometimes dairy products make one shat brack real hard.

Fuck dude, I just pounded mad swiss cake rolls and off brand american cheese singles-i'm gonna fuckin shat brack!

Last night I rocked 14 pints of Guinness and an industrial sized container of Crisco. Needless to say, I shat brack this morning mofucka!

Remember that time when Maurice got fired up on whiskey and shat brack in his pants?

shat brack by Kevin FitzGerald October 22, 2006

back shat 

The result of a massive shit taken in one's pants, where the amount of poop is so much that it has nowhere to go but out the top. Typically happens to babies in diapers but it is also known to have occurred with fat, drunk bitches who can't get out of pants that are too tight in time to take a shit.

Person 1: What's all that brown stuff coming out of that chick's pants?

Person 2: I think she just back shat herself.

back shat by The Hot Karl January 1, 2011

shatback 

A girl or guy who is worse than being shat.
See Shat

"Lena was an honorary shatback...all her life"

shatback by Laila March 30, 2004