when one girl really wants to screw the quarterback but her friend ruins it by saying something that makes him want to mingle elsewhere.
What the hell julie?! you totally just twotblocked me!
by the deconstructionalizer March 26, 2010
Get the Twotblock mug.
noun
1. When a man is flirting with a woman. Another man sees that they are flirting and begins flirting with that women, exclusively to the first man. This prevents the first man from getting sex with the woman.
2. A man who is trying to prevent another man from getting sex. He does this by flirting with the girl the original man planned on having sex with.
1. I was real close to getting her in bed, until Johnny walked in and turned it into a real twotblocker.
2. That chick had a thing for me, until the twotblocker started talking to her.
by fushahb20815 May 17, 2009
Get the twotblocker mug.