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3.
a sideways vagina, most commonly found on asian prostitutes.
Back in Nam, I had sex with a girl, but she had a side vag!
by sara[h]lizzz July 10, 2006
 
1.
An alternate vag option. Some will have many side vages whilst others may have none.
Yo Tony, I'm tired of my primary vag, but I'm so throat deep in side vag I don't know which one to pound.
by Inbread December 15, 2009
 
2.
(noun) Common abbreviation of side vagina. This condition occurs when a girl's pants are too tight and as a result her nether lips are plainly visible at distance through the fabric.

Syn: camel toe
Damn, look at that bitch, she has enough sidevag to be the Grand Canyon!

Man, I gotta get me some of her sidevag!

Girl 1: How do these pants look on me?

Girl 2: Ummm... you totally have some sidevag going on.

Girl 1: Well shit, maybe I will actually get laid tonight now!
by MisterJakey April 04, 2009