Top definition
It stands for "Your Mom Pussy Stink!"

Used when online or texting. Short and to the point. A come back that's so harsh you don't even want spell it out online!

Made by TMB Crew!
BitchAssBitch on FB: Yo Fuck Yo Couch Bitch Nigga!
Me on FB: Fuck You that's why YMPS!
by TurtleInParris January 03, 2013
Happy St. Patties Day!
Your mom's pussy...................
I ate YMP last night.
by popojejo September 04, 2005
Happy St. Patties Day!