pop knot Share definition Flag A knot that “pops up” on one’s head due to a blow such as from blunt force trauma. When the prison guard rapped an inmate on the head with his Billy club, a big old pop knot rose up on his head! pop knot by dmillswvu82 March 25, 2021 0 0 Get merch Get the pop knot mug. Buy Now — $32.95 See more merch
