I got that mad dick, you know it always nut up

from Big Sean – Dance (A$$) Lyrics on Rap Genius

Meaning

People “nut up” when they get mad, they get all tough, or, in slang, “grow a pair” — giving in to their instinctive testosterone-induced habits: getting angry.

And when people are mad, they are often referred to as going nuts and being crazy, so he’s saying he’s got that mad dick that’s always crazy.

To help improve the meaning of these lyrics, visit “Dance (A$$)” by Big Sean Lyrics and leave a comment on the lyrics box