look up any word, like donkey punch:
 
1.
An arse hole, ones brown mouth,
She gave me a BJ with her brown mouth
by daniel hobart April 22, 2008
 
2.
Allowing a female to perform oral sex after an extended act of anal sex. Ideally, this female will have a little brown lipstick as a reminder.
That bitch was scandalous, so gave her a lot of brownmouth.
by BTA November 27, 2007