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."
A hardo is a person who tries extremely hard at everything. Most times a hardo will try very hard at things that do not require excessive effort. For example, sports practices, gym class, etc.
Wow did you see Jack at practice today? What a hardo!