cum slackie Share definition Flag A Insult to use against people who love cum or are just being an asshole "Fuck you Bryce, you cum slackie" "Hey man that kind of hurt my feelings" "Shut up cum slackie" cum slackie by JoeDickButt November 25, 2018 0 0 Get merch Get the cum slackie mug. Buy Now — $32.95 See more merch