ROFL Cock Share definition Flag When someone is having oral sex and their partner tickles the other person's the penis and/or scrotum until they cum. "My girlfriend gave me a ROFL Cock last night, I laughed so hard, I came all over." ROFL Cock by cokmonkeyy April 6, 2010 0 0 Get merch Get the ROFL Cock mug. Buy Now — $32.95 See more merch