1 definition by Fleece Tyberious Pune Hound

Top Definition
present participle of clump (Verb)

The act of having sex with a person or persons that is your client on one or more occasions. AKA Client Humping
"Dude, did you hear Justin got fired from the gym for clumpin?"
by Fleece Tyberious Pune Hound February 08, 2013

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