Top definition
When two sexual partners are acting in anal sex when upon ejaculation of the "pitcher" the "catcher" has explosive diarrhea and the semen and diarrhea are mixed making a lighter color resembling a steak marinara.
Those gay kids created a nice batch of Buttsex Marinara with their intercourse last night.
by Dave the Nave January 11, 2010
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