When you have sex with someone again after a significant amount of time has passed.
Hey, I heard you and Mike are hanging out again. Did you resex him?
by Casey0307 May 05, 2009
To have sex with someone after you broke up. Usually just a one time deal.
"I can't believe you had re-sex with that ass clown! He's such a loser!"
by Amy January 13, 2005