Define Drain-o Meaning

Drain-o
When a girl only can do one thing to your penis orally

I want some drain-o from her
By Keriann
Drain-O
The act of urinating into a girl's anus, usually after giving vaginal/anal sex.

"So, I was in pee limbo after we came, right? So I just went ahead and pulled a Drain-O on her. Problem solved!"
By Bernette
The Drain-o
Its when your having sex with a chick doggie style over a toilet while she's throwing up from drinking to much.

I gave that chick the drain-o last night after the party.
By Eddi
Missouri Drain-O
To perform anal sex while using Sanitizing gel as a lubrication shortly after defecating.

Guy: "O baby, you just took a crap? Wanna do a Missouri Drain-O real quickly to clean it out?"
Girl: "I'd love to"
By Sandy