Top definition
silent "k" knastie is a sexual nasty rather then someone throwing up nasty.
Man when I saw Mel in that dress it made me think of knastie thoughts.

Man last night I had some knastie dreams about that girl at the coffee shop. It was like I was in a porno.
by Mendez February 22, 2007
Get the mug
Get a knastie mug for your mom Larisa.