Performing Sexual favors to raise a grade.
Mactaggart boned ms. Wojtas for some Sextra Credit.
by DirtyD November 29, 2004
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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 8, 2010
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Sleeping with a professor for a better grade.
Tracy's went to Professor Mustard's office to get some sextra credit.
by White Shaq June 3, 2003
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