Mini-Fonz Share definition Flag The act of inserting both thumbs into the anus of another, then pulling them gently apart while shrugging the shoulders and giving the catch phrase, "ehhhh!" I can handle a Meg Ryan, but my ass isn't prepared for a mini-fonz. Mini-Fonz by mini-fonz January 2, 2009 0 0 Get merch Get the Mini-Fonz mug. Buy Now — $32.95 See more merch