The crafting
table is a block from the mainstream
game, Minecraft. Due to a incident in GeorgeNotFound's stream that their fans had found "interesting", it had been an on-going
joke that "standing on a crafting table" means to give/receive a blowjob, or simply to have sexual intercourse.
Random person A:
Hey, would you stand on a crafting
table for me?
Random person B: Absolutely not, never
say those words to me again.