To do unto others before it is done unto you.
She took prevenge on her boyfriend by eating the last piece of pizza before he could. Ha, prevenge!!! She also took prevenge on her boyfriend by farting in the car and locking the windows so he could not escape. Prevenge!!
by Dearzy The Great November 14, 2009
to avenge somebody before the action occurs. also known as preemptive action. An action the make revenge meaningless.
I would have been killed by those drunken idiots, but Tom intervened and prevenged me. If only I could have prevenged him from the battery charges that followed.
by Man Tis August 18, 2010