Short for "Mutually Exclusive Sexual Partner." You're not dating, you're not sleeping around. Similar to "Fuck Buddy."
When you only have one sex partner, but they are not your boyfriend/girlfriend.
When you only have one sex partner, but they are not your boyfriend/girlfriend.
by Kerico May 05, 2007
Asian man knocks you accidentally as he walks past
Instead of calling him the obvious word of PAKI you call him a fuckin MESP
Instead of calling him the obvious word of PAKI you call him a fuckin MESP
by Leesa0387 July 24, 2020
by genesis April 25, 2003
by genesis April 28, 2003