Rob Bob Mcgoo Share definition Flag A piece of shit asshole who you can never take seriously Guy 1: "Who's this faggot vaping at the stoplight?"Guy 2: "Fuckin Rob Bob Mcgoo" Rob Bob Mcgoo by avamuthafucka September 6, 2016 0 0 Get merch Get the Rob Bob Mcgoo mug. Buy Now — $32.95 See more merch