Top definition
When the rectum violently pulsuates (orgasmically) from sexual stimulation.
Andy gave the Captain one hell of a pulsating rectum last night.
by Tony Yayo March 16, 2004
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