Top Definition
The new toothbrush you must use to replace your old whacked up toothbrush.
Ryan: Yo homie, im trying to brush my pearly blancas and this old toothbush isn't doing shit!

Ben: Relax bro, we'll take a Newthbrush run to walgreens in 10

Ryan: Maybe I can swipe me an oral-b!
by patbenn August 05, 2011

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