numtumbout 

when pronounced "know what im talking about" is what is sounds like.. NUMTUMBOUT!

Man, this urbandictionary is thowed.. numtumbout?

numtumbout by bushi September 9, 2003

numtumbout 

"know what im talking about". "numtumbout" said outloud resembles "know what im talking about"

Man, school is gay as hell, numtumbout!

numtumbout by Bushi September 8, 2003

numtombaut 

A shortened saying of the sentence, "You know what I'm talking about?".

"I got that bitch last night. Numtombaut?"

numtombaut by TOP FLIGHT CA August 26, 2006