plebhead Share definition Flag A plebhead is another word for a pleb. It's an insult to call someone you don't like and think is annoying. See also plebtard. "Blah blah blah blah.. Blah blah." .. "Shut up, you plebhead." plebhead by Jebbie January 18, 2008 0 0 Get merch Get the plebhead mug. Buy Now — $32.95 See more merch