Top definition
Performing Sexual favors to raise a grade.
Mactaggart boned ms. Wojtas for some Sextra Credit.
by DirtyD November 28, 2004
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Jun 24 Word of the Day
An exclamation made when your friends or family are teasing you to a point where you can't handle it anymore and a hissy fit is in order.

Derived from a YouTube user's famed outburst following Britney's lackluster performance at the 2007 VMA's.
Sarah: 'OMG Susan, I can't believe you are wearing the same skirt as yesterday. Oh, and by the way, EVERYONE knows what you did with Kevin on the weekend. Plus you look a little fat, are you retaining water?'

Susan: 'LEAVE BRITNEY ALONE!'
by Billy Chickenhole September 15, 2007
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2
using ones god-given assets to improve their grades
Professor Lowell was so desperate, he was offering sextracredit to any and all of his students.
by Hazel Wood March 13, 2008
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4
the extra money you get when you perform sexual acts
Girl says, "Damn, I'm short three bucks. I'm gonna go get some sextra credit."
by maithong December 08, 2010
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