Butt Boarding Share definition Flag When someone sits on their ass for too long. Not to be confused with exercise. Dexter, World of Warcraft has kept you butt boarding far too long. Go meet some girls. Butt Boarding by Kamikaze Kool-Aid Man October 1, 2010 0 0 Get merch Get the Butt Boarding mug. Buy Now — $32.95 See more merch