Femblumpkin Share definition Flag Administering cunnilingus while the female defecates, smearing feces all over the chin and neck region of the male or lesbian. Dude you smell like shit! I know man, I just gave Julie a femblumpkin. Sweet man! Femblumpkin by Wagonian April 27, 2006 0 0 Get merch Get the Femblumpkin mug. Buy Now — $32.95 See more merch