2 definitions by judgeofphsdonteffwithme

The act of ejaculating inside anus, then letting the person push it out like an icing piping bag, then spreading it around the buttcheeks as if it were icing on a cake.
"Broo, I gave my girlfriend the biggest piecake ever!"
by judgeofphsdonteffwithme May 29, 2017
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When you need to take a piss so bad that the piss pressure builds up and your penis gets hard.
"Bro, I got such a weird pisstiffy in class today"
by judgeofphsdonteffwithme May 29, 2017
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