Top definition
The act of slapping one's penis against the forehead of the person who just performed oral sex on you to remove any jizz left in the shaft of the penis.
I always like giving her the thonker so cum doesn't drip on my underware after I zip up.
by redlight hack January 17, 2013
Get the mug
Get a thonker mug for your cousin Helena.

Available Domains :D

  • thonker.ninja
  • thonker.com
  • thonker.org
  • thonker.se
  • thonker.net