Blumpkin Share definition Flag The act of giving/receiving a blow job while sitting on the toilet taking a shit. Dude, I was sitting there takin a big ol' shit when my girl came in and gave me a blumpkin. Blumpkin by mrcarter044 December 4, 2016 0 0 Get merch Get the Blumpkin mug. Buy Now — $32.95 See more merch