Duck Butter

noun: extremely stank ass ball sweat.

verb: the act of harvesting ball sweat with one's middle and index fingers, then placing those fingers under an unaware victim's nose.
Broderick's duck butter was so rank that it had a stench radius of four feet.

Neil duck buttered Jess so badly after not showering for 3 days.
by Jon Yee October 17, 2004
mugGet the Duck Buttermug.