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1.
Senegalese slang for "a meaty girl".

For added emphasis, chum chum can be added to the end of the word.
Example One:

John: Damn mane, look at that numma chumma.
Bob: No way you dumbis, that girl is as flat as cardboard.

Example Two:

John: Yo, check out that numma chumma.
Bob: Damn mane, that ass fine as hell...numma chumma CHUM CHUM
by Scott Warshire August 15, 2007