Spit Shuttle Share definition Flag The unintended launch of expectorant in the midst of conversing. Oh, dude...sorry 'bout the Spit Shuttle!Dude! you just hit me with a Spit Shuttle! Spit Shuttle by mantrum December 3, 2009 0 0 Get merch Get the Spit Shuttle mug. Buy Now — $32.95 See more merch