The act of doing a promiscuous activity, either alone or with one other persons, infront of an audience or crowd of spectators. Doing the dumb dirty will usually result in extreme embarassment and shame.
vinny: you abdu, how you gonna do that dumb dirty in front of all these kids at the part?
abdu: i'm am so ashamed, why am i dumb dirtying??
vinny: bruh nerd
abdu: i'm am so ashamed, why am i dumb dirtying??
vinny: bruh nerd
by pharohdick May 27, 2014
"How does that girl not realize that that guy doesn't want to hook up with her...and that three of her friends have already slept with him?! What a dumb dirty."
"I can't even stand that bitch. She's such a dumb dirty."
"I can't even stand that bitch. She's such a dumb dirty."
by For You MJ August 31, 2009
I recovered from Covid-19 from Sturgis 2020, but got a breakthrough case at Sturgis 2021 from another Dumb Dirty Biker.