look up any word, like lemonparty:
 
1.
Performing Sexual favors to raise a grade.
Mactaggart boned ms. Wojtas for some Sextra Credit.
by DirtyD November 28, 2004
 
2.
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 03, 2003
 
3.
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
 
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