look up any word, like sex:
The most accurate adjective to describe the feeling of relieving the bowels while receiving head.
That was blumptastic baby... now clean up.
by jwn February 03, 2004
blump-kin (adj.)
The description of an action or event that is so incredible that it can only be accurately described or compared by the reception of a blow job while shitting.

word origin - "BLUMP" Old French Porn -, "KIN" - Middle English, Blump-kin Urban Dictionary
My last blumpkin was blumptastic.
by Tim January 24, 2004