Dirty Barnholtz Share definition Flag The act of eating ice cream, puking it back into a cup, then drinking it again. I can't believe Dennis just pulled a Dirty Barnholtz again! What kind of person does that? Dirty Barnholtz by streetstylestunters September 4, 2010 0 0 Get merch Get the Dirty Barnholtz mug. Buy Now — $32.95 See more merch