74 skadoo Share definition Flag When you wipe testicular and/or gooch sweat on your forefingers then proceed to wipe in another's mouth. Followed by shouting 74 SKADOO! dude that bro just 74 skadoo'd me! 74 skadoo by Newby689 December 26, 2007 0 0 Get merch Get the 74 skadoo mug. Buy Now — $32.95 See more merch