just like a cock block, but instead of a guy getting blocked its a girl.
kelly- i was just about to kiss casey and then danni comes over and vagina blocks me.
morgan- i hate getting vagina blocked
by chunkanator7 December 9, 2010
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The two-handed block move (right over the hole!) used by a woman to prevent a dirty, unwanted penis from going in her. High success rate. Works every time. More successful when accompanied by a "VAGINA BLOCK" scream.
"Dude, I was totally trying to get with this girl last night, but she pulled a vagina block."
"Man, that sucks."

or

"I forgot my rape whistle last night, so when this guy pulled out his dick, I had to use the vagina block instead."
by OET November 9, 2008
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(V). The action a girl takes to interfere with flirting, similar to cock blocking, often annoying
That girl was vagina blocking me from flirting with my crush!
I hate that bitch for vagina blocking me.
by Brokenheartedgirl15 September 21, 2013
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