Bitched version of the word something. It is most commonly used in the phrase "humpin' sumpin' new" which translates to "engaging in kinky sex."
Nice ass, Fido, I'm glad to be humpin' sumpin' new.
by GuidoPosse69 February 02, 2005
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These little ditties can be used to describe something very special. Like a new car, or an evening out.
Hey baby, I got a little sumpin sumpin for ya.
by Bomni November 19, 2004
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Bitched version of "humping something new", meaning to engage in kinky sex or practice adultery.
Little Princess Sophia, come on, lick me like a lollipop should be licked. I'm glad to be humpin sumpin new.
by GuidoPosse69 February 11, 2005
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