I hate to brag, but damn I'm good
And if mics were a gun, I'd be Clint Eastwood

from Big Daddy Kane (Ft. Biz Markie) – Just Rhymin' with Biz Lyrics 22 on Rap Genius

Meaning

Eastwood, of course, portrayed “Dirty” Harry Callahan in the Dirty Harry series of movies. The vengeful Callahan always carried his powerful .44 Smith & Wesson Model 29

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