brownie backwash 

The slight taste of shit that one tastes when rimming the anus of another person.

I stopped eating his ass when I noticed a little brownie backwash.

brownie backwash by Mike Davidson December 28, 2003

brownie backwash 

The melted, soupy leftovers of a hot fudge brownie sundae that was shared by three or more people at a national-chain restaurant.

No one at the table wanted to finish our dessert because all that was left was brownie backwash.

brownie backwash by FoodLuvr January 11, 2004