1 definition by CKJONPLASCENCIA
A term used when one is getting ready for a "slutty" party (i.e. Halloween parties, lingerie, etc.). Resembling "suit-up", to "slut-up" is preparing for action. Ideally it is the "outfit" with the least amount of clothing.
Slut-up! We are going to a Halloween party!
by CKJONPLASCENCIA November 3, 2012