acid quacker Share definition Flag loud fart that comes out too quick, sometimes causing pain to the shitter / ringpiece. eg. 'boy, i just done me an acid quacker and now it looks like i gonna need me some ringpiece stitches. aint that a bitch.' acid quacker by mojo7676 January 6, 2005 0 0 Get merch Get the acid quacker mug. Buy Now — $32.95 See more merch