knuller -s, -ing (also chnuller)

1. a person who have casual sex with anyone at anytime.

2. Two persons living together just for the sex, without any other commitments
1. Lisa is such a knuller! She goes to bed with anyone!

2. George and Jennie are not married! They are just knullers!
by Roffe May 16, 2003
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A guy that fucks your pussy good, usually a Rasmus.
Girl 1: Rasmus done my pussy good.
Girl 2: I want him inside me.
Girl 1: he's the real fitte knuller
by Nigerianmann December 1, 2016
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