Blumpsterbation Share definition Flag Blumpsterbation is to masturbate while taking a dump, derived from the term Blumpster. Man, the other day I was doing some blumpsterbation but the smell got so bad I couldn't even finish. Blumpsterbation by Khaytsus January 29, 2008 0 0 Get merch Get the Blumpsterbation mug. Buy Now — $32.95 See more merch