knob goblin Share definition Flag a college co-eds that cannot quit putting the dick in her mouth to save her life "Holy Shit!! That bitch is sucha a knob goblin. I bet she could take down a pool cue!!" knob goblin by yeti042 February 25, 2003 0 0 Get merch Get the knob goblin mug. Buy Now — $32.95 See more merch