The tight, unrelenting grip of the vagina around a male partners member or any inserted object.
I hope she was on the pill! She had me in such a massive claunch I could not pull out in time.
by Soni Token May 29, 2008
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To violently jerk off and "launch" a load after doing a bunch of coke. A portmanteau for "coke launch".
Whisper it to yourself. "Claaaauuunnnnch"
The poor guy was a degenerate. A depressed and high strung individual and addicted to porn, he regularly sniffs coke and locks himself in his room and masturbates. Claunching hard.
by sevi7n November 28, 2012
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To be rejected completely by a person.
Person1: He put his arm around her, but she totally claunched him.
Person2: Yeah, she said he didn't have a snowball's chance!
by MattyIce09 March 18, 2010
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