Top Definition
The act of receiving anal sex while vomiting simultaneously.

A.K.A.- U.D.R.B.
Sheila used that new strap-on today to give me an Upside Down Reverse Blumpkin and I lost my Lo-Mein. It resembled Heart Worms.
by Wayde Allen Smith March 31, 2007
5 Words related to Upside Down Reverse Blumpkin

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