Willy-Whacker

A penis that packs quite a punch, and by punch, I mean a big dick slap to the face of your enemy (Or partner, if she/he prefers it).

To give your partner a "Willy-Whacker" is to basically get an erection that is hard enough to whack the shit out of your partner.
Just swing it to one side and knock that bitch out.
Kyle: Dude, did you just knock your girlfriend out last night?
Nathan: Yeah, I gave Gina the Willy-Whacker.
by WickWhack April 23, 2024
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