Doodleheimer Share definition Flag A dickhead, insulting someone, the act of being a complete tool or describing a car part. Dude, you are such a doodleheimer. OR. So, the doodleheimer connects to the whatchamacallit? Doodleheimer by Dheimer March 16, 2011 0 0 Get merch Get the Doodleheimer mug. Buy Now — $32.95 See more merch