Top definition
Eating another person's ass to provide sexual pleasure. Usually a result of a large chemical or alcohol intake that leaves you feeling so wild and horny you just wanna do EVERYTHING.
I came home from that kegger and I was so blotto I think I performed rumpilingus on my girl.

or

On prom night, we did everything shy of rumpilingus.
by Nick February 09, 2005
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug