1, An explosion of intelligence. 2. The action of doing great on something that requires you to be very smart, such as a test.
College student: Bro, I am going to gre-nerd this final.

Surgeon: Nurse, I am going to gre-nerd this appendectomy.

Mexican Drug Cartel Leader: Voy a gre-nerd el narcotrafico
by DuCamValDen February 18, 2013

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