Definitions by ilovebirchbeer_not

Ninja Twat 

the act of sneaking up behind a female and hitting them in the vagina. Works best while walking up the stairs behind them. You can use a closed fist or an open palm.

Guy: *walking up stairs behind girl, hits her in the vag*

Girl: Ow! What was that for?!

Guy: Nothing... I just wanted to Ninja Twat you.

Ninja Twat by ilovebirchbeer_not April 27, 2009