1 definition by Mrs. McNicky

An enchanting sex act in which the lady drops a deuce on the gentleman's chest and smears it around with her buttocks WHILE riding him reverse cowboy style. Generally both participants are close to climaxing or have just climaxed.
Timmy was both turned on and disgusted when Suzy took a dump on his chest and smeared it around just as he climaxed. Little did he know he'd just enjoyed a brown betty.
by Mrs. McNicky January 18, 2010
Get the Brown Betty mug.