Gruffing is the act of wanking off a homeless man under a bridge. Its a reference to the popular childrens fairy tale the Billy Goats Gruff. Don't think there was any wanking in that though.
"Jimmy's been wearing a sling all week after a particularly vigorous Gruffing session."
A made up game from the TV show, “Riverdale”, if played, causes weird behavior, almost like being possessed by the ring leader of the game, The Gargoyle King. Many people have taken their lives by, drinking blue liquid from chalices, which is a part of the game.
Did you hear Jughead started playing Griffins and Gargoyles with the serpents?! I heard he is trying to catch the GargoyleKing.