It is when your butthole itches, so you run to the bathroom and itch it with some TP. You examen that TP and lo and behold! That little bit of yellow on the TP is a 'pat' of duckbutter. Everyone gets Duck Butter sometimes. Listen, fuck how everyone else defined this word. this is the truth!
Man this duckbutter is making my asshole itch!
by b-town November 05, 2004
The thin layer of green algae that grows on top of the water in swamps and sloughs throughout the backwaters of Texas and Louisiana.
Damn Cletus, this Duck Butter sure is thick today. Sure am glad I ain't gotta get off in this nasty shit to get them ducks. Good thing the dog doesn't know what it is.
by Aaron Hughes July 10, 2008