To ecrapulate is when you think you're about to ejaculate, but you accidently take a crap instead, effectively ruining (or enhancing) the moment.
William was getting a handjob, but he really had to go to the bathroom, and effectively ecrapulated at his peak. Jenny wasn't impressed.

"Dude, I almost ecrapulated the other night, but I held it in and finished her off with an alabama hot pocket instead."
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When you want to masturbate, but need to shit first, and end up cumming when you start to strain.
"Aww damn it man! I was so ready to jerk it. But I ecrapulated all over the toilet seat"
by SloppyJoseph July 29, 2014
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When you think you are going to fart, but crap instead. Basically; When you shart
Person 1: Dude, watch this fart!
Person 2: Alright!
Person 1: *Sharts* Ah damnit!
Person 2: What happened?
Person 3: That sucks! He had premature ecrapulation! Haha!
by Zyth995 November 6, 2011
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letting out a fart, but the fart is in fact a bit of poop
The bathroom was upstairs and I let out a Premature Ecrapulation with letting out a relief fart
by Who8myshoe May 27, 2016
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