Spewey Share definition Flag Man-boy who cannot handle excessive drinking and as a result, vomits uncontrollably. i.e. puker, vomit-breath, chunk-blower. Wow did you see Fox vomit after that Irish Car Bomb? Yes, he got a little spewey. Spewey by SpeweyFox September 21, 2009 0 0 Get merch Get the Spewey mug. Buy Now — $32.95 See more merch