A condition caused by giving a Blumpkina. Symptoms include feces on the chin, dicoloration of the chin and mouth, and often, horrible breath. It happens when feces comes in contact with the chin of a person performing cunnilingus on a woman who is defecating.
"I was going down on my girlfriend, but she had a stomach virus and, to make a long story short, I got that Brown Chin Syndrome"
by Krazy Akmed July 4, 2006