Cockrocket Share definition Flag 1. A cock that erects at an extremely fast rate like a rocket. 2. An insulting term for a male. 1. This cockrocket is better than Kim Kardashian’s. 2. You foul little cockrocket. Cockrocket by miksa21 December 14, 2018 0 0 Get merch Get the Cockrocket mug. Buy Now — $32.95 See more merch