A term used when you hold a towel over another person's face while they try doing a sit-up. With the towel covering their eyes so they cannot see, another person stands over the blindfolded person with his pants down. While the person is struggling with the sit-up, the person holding the towel lets his grip loose. This will allow the person to successfully complete his sit-up, with the suprise of ending up with his face in the other person's sweaty ass!
by Matt "Moose" January 25, 2007
"I thought that guy at the door was a census taker but he was just a homeless guy who wanted to poke me in my brown onion!"
by nurtchle November 26, 2007
by Lord_Cunnington June 05, 2011
by DaHolmes March 21, 2023
The life-long remorse suffered when you turn down a guaranteed fuck with a random girl, just because she is the Brown Onion of her group of friends, and you worry what your friends will say.
God I wish I just nailed that pig in 1992 when I had the chance. I've got serious Brown Onion Syndrome now.
by Lord_Cunnington June 05, 2011
A brown onion ring is the end result and combination of heat, time, and not wiping one's anus good enough. A sticky, cake-like residue builds up around the anus, which causes a stinky, sandy sensation on the rim of the anus.
I just bought new underwear, and now I can feel a brown onion ring seeping out onto them. Damn, it's hot outside!
by Ronald Stentwagon May 28, 2012
by truk213 April 30, 2008