cheddar jack Share definition Flag When you jerk off after eating Cheetos, and still haven't cleaned the Cheeto dust off first. I cheddar jacked last night because I was too lazy to clean my fingers after eating Cheetos. cheddar jack by DeadTaco1 March 16, 2016 0 0 Get merch Get the cheddar jack mug. Buy Now — $32.95 See more merch