An action taken usually by a woman whilst driving, that leads to other people's upset.
C.K.: "Damn numbtits driving on Hwy. 50 cut me off"

M.V. : "Check yo' self fool, that numbtits was a dude"

C.K. : "numbtits, numbcock all the same"
by ckayckayckay August 8, 2011
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