berrypeek Share definition Flag The act of covertly displaying one's testicles through one's opened zipper-hole in public locations. I was at the mall today with Joey when I got him with the ol' berrypeek. You shoulda seen his face. berrypeek by Luiggi April 25, 2008 0 0 Get merch Get the berrypeek mug. Buy Now — $32.95 See more merch