Top Definition
when pronounced "know what im talking about" is what is sounds like.. NUMTUMBOUT!
Man, this urbandictionary is thowed.. numtumbout?
by bushi September 09, 2003

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"know what im talking about". "numtumbout" said outloud resembles "know what im talking about"
Man, school is gay as hell, numtumbout!
by Bushi September 08, 2003

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug