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.