1. Noun: The sound created by human shit hitting the water in a toilet. Often as a direct result of how large the log was and how deep the bowl is.
2. Verb: The action that brests perform when a topless female is getting fucked missionary.
2. Verb: The action that brests perform when a topless female is getting fucked missionary.
1. Man, I had to hang on with both hands to try and and squelch that last kathunk.
2. I felt like I was going to break that bitches nose, you see how those things were kathunking her head?
2. I felt like I was going to break that bitches nose, you see how those things were kathunking her head?
by Sumobot March 28, 2009
Get the kathunk mug.The sound of your brain collapsing when something too confusing or too mind blowingly awesome is said to you. If your brain was a building, kathunk would be this building suddenly falling to shambles. Beware! Many never recover.
Shannon: The reason Einstein postulates that an objects length can change with its speed is due to its rotation in the 4 dimensional space time continuum. Any thoughts?
Sarah:...Kathunk.
Shannon: Hmm.
or
Sarah: Shannon! A wild goat just kicked Santi in the nads!
Shannon:Kathunk!
Sarah: I know, right?
Sarah:...Kathunk.
Shannon: Hmm.
or
Sarah: Shannon! A wild goat just kicked Santi in the nads!
Shannon:Kathunk!
Sarah: I know, right?
by Secret Agent Alpaka May 6, 2011
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