YMT

"Your mamma's titties" - when all else fails at making a reasonably good come back simply say Your mamma's titties, or YMT online.
2. an acronym used to inconspicuously make references to "Your Mother's Titties"

D-bag: "How did you get holes in the knees of your jeans?"
Other:"Yo' Mamma's titties"
D-bag:"What?"
Other:"YMT"

by Mike & Mas February 12, 2006