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.
Person 2: I think she just back shat herself.
by The Hot Karl January 1, 2011
Get the back shat mug.When you have to take a shit and there is nowhere to go so you have to pop a squat but take a shit instead.
The other night James was on his drive home and suddenly had to take a shit. To avoid shitting in his pants, not to mention his car, he pulled over to pop a shat.
by Charles Quinn May 23, 2007
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Get the Shat Attack mug.by Tryard December 18, 2008
Get the Shat Attack mug.Shastin is a smart, beautiful, spontaneous girl. Shastin's usually have a nice butt, particularly thicc. Shastins are relatively short. Shastin's often participate in athletic activities, and maintain good grades. Shastin will definitely impress your mother.
by Shastvvn July 16, 2018
Get the Shastin mug.You're being a shata bro
by benzieiskenzie December 28, 2018
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