Hop on Jackbox Share definition Flag internet slang referring to participating in rough unlubricated anal sexual intercourse "Hey you wanna hop on Jackbox this Saturday?""Sure, Ill just have to wait till my parents sleep" Hop on Jackbox by chesterstone February 26, 2021 0 0 Get merch Get the Hop on Jackbox mug. Buy Now — $32.95 See more merch