A guy/girl in law school who volunteers an answer and saves you from getting called on. While his/her answer is annoying, and he/she is a douche bag, they are serving a purpose. Hence, a purpouche - purposefuly douche bag.
"I didn't read that case and hope I don't get called on, thank god for all that purpouche."
by Ramis September 4, 2008
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