Definitions by Ms. Qberta 2

numb dumb 

When you're so numbed by school, work, stress and other life-related difficulties that it's made you a sloth-like shell of your former, quick-witted self.

"Man, I'm so stressed out from school, it's making me numb dumb."

numb dumb by Ms. Qberta 2 February 18, 2009