A beautiful term for an extremely Foul smelling fart. The term is made funnier if the fart sounds like quacking duck when expelled from the rectum. Though an SBD can still qualify as a Butt Duck if it is especially foul (emphasis on the word foul/fowl for comic effect). See frequently activated rectal tremble and shit flavored air.
"Fuck Mary, you shit a butt duck! I think you have cancer, something has crawled up your arse and died!"
by keifermail August 8, 2009
by Scotgirl1027 December 19, 2010
alyssa has a butt duck.
by Corinne_creep December 9, 2008
This is a shameful act that only happens in desperation when you are home alone and have completely run out of toilet paper. With your pants around your ankles, squat walking, and your hands spreading the butt cheeks so you don't smear shit everywhere, you walk this way to your roommates bathroom to finish the job.
by Sir Greggles March 30, 2017
Hairstyle found among emo/hXc kids where the back of the hair is spiked up, and the top and bangs are left down.
by christianXcore March 12, 2005
The kind of puckering of one's own asshole in extreme situations where it is so clenched, it becomes water tight, like a duck's butt.
by OhSoMoist December 8, 2017
An extreme arch in the lower back of a female and a butt that is so bubbly it sticks outward."Duck Butt"
She got duck butt.
Look at that little duck butt.
Her booty makes her walk knocked nee'd, "the waddle walk"
Look at that little duck butt.
Her booty makes her walk knocked nee'd, "the waddle walk"
by Kevo June 15, 2006