to have sex with a woman while wearing a clown costume. dervies from the combination of the words clown and humping.
"Dude did you have sex with my sister?"
"I clumped her ass, son"
by NiMo March 2, 2005
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Don and Bill totally clumped Hillary last night
by GL Taco Kitty November 27, 2019
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1. To have sex with a woman while wearing a clown costume.
2. A group of men, dressed up as clowns, arriving in a small car and running a train on one woman.
1. After a night of drinking, he would often end up clumping Ms. Sherman while eating a fried fish.
2. Yo, let's go clump that bitch.
by American, African November 18, 2007
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the act of your balls clapping against someones ass durring buttsex
I was ridding that bitch bareback and couldent stop clumping
by gavin smith March 28, 2008
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