whistlecock Share definition Flag huge molly wop, one hit one kill what the deal, 2 hits i hit u u hit the floor, tremendous haymaker that can be heard cross county "u seen that bitch a nigga? he just got whistlecocked" whistlecock by Cro-Breesy January 16, 2012 0 0 Get merch Get the whistlecock mug. Buy Now — $32.95 See more merch