Flahoobadoob Share definition Flag Totally whacked out and crazy. Things that make no damn sense. Somebody tells you unbelievable rumors about someone...etc. "That's totally off the flahoobadoob!" Flahoobadoob by MudPuddle3 April 28, 2004 0 0 Get merch Get the Flahoobadoob mug. Buy Now — $32.95 See more merch