Top Definition
One who performs cunnilingus upon a girl with a labial piercing, or upon a man with a penile piercing.Can also be used as a derrogatory insult.
Maria loves John because he's cute, and is quite the wet knocker.

Ruven is so pussywhipped! He's such a wet knocker!

by TinkyWinky69 April 23, 2006
5 Words related to Wet Knocker

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