Butt-burp Share definition Flag quite simply, a fart...but my two year old spontaneously re-christened it - "Daddy, I made a butt-burp!" - while we lay watching his favorite tv show. Who made a butt-burp? Butt-burp by tankyard January 17, 2010 0 0 Get merch Get the Butt-burp mug. Buy Now — $32.95 See more merch