The "leftover" chicks that are still at the bar close to closing time. If they came for a dicking and they haven't went home with anyone, they're starting to get desperate and will start lowering their standards to include you.
Bro #1: Dude, that girl was so hot last night.
Bro #2: I know! I got stuck with a 1:30 Dirty.
Bro #1: That sucks man, pussy is pussy though.
Bro #2: I know! I got stuck with a 1:30 Dirty.
Bro #1: That sucks man, pussy is pussy though.
by DeadSpace909 October 13, 2013
A whorish girl that you pick up at 1:30 am from the bar without having to buy her a drink, or really put any effort into it at all. She's not necessarily hot, but she just wants to get banged.
Dave: Did you pick up any girls from the bar last night.
Me: Well it was getting late so I picked up a dirty 1:30.
Me: Well it was getting late so I picked up a dirty 1:30.
by Oh Dee Vee February 6, 2010