She say I’m gettin’ cocky
Now I say, “I’ve been a dick”

from B.o.B (Ft. T.I. & Yasiin Bey) – Boom Bap Lyrics on Rap Genius

“cock” and “dick” are both slag words for penis. Cocky is being confident in a bad way while being a dick being annoying about something, so basically when she says he getting cocky B.O.B. says he’s been that way.

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