look up any word, like bukkake:
 
1.
8 out 10 Proctologists agree that a duck arse is commonly associated with woman and are usually larger than a Booty but smaller than a Toyota Echo. Symptoms include an abnormaly upright strutting woman with a large bulbus ass pertruding from spandex or stretched jogging pants.
Yo that chick heading out for a dip is going to displace some serious H2O with that DUCK ARSE, ya heard!
by T-DawG November 23, 2004
 
2.
When somebodies lips are too wet when sharing a cigarette, so the butt of it becomes damp

Also applies when smoking more taboo substances
Who duck arsed it? If i wanted spit in my mouth i'd have kissed you instead

Darren duck arsed again, i'm not going halves with him again
by JacobM June 28, 2010
 
3.
Derogatory term used for a man who has wronged a woman in any way. Usually towards ones husband...
I made myself a plate of dinner and when I came back he had eaten it... He is such a Duck Arse!!!
by egggman October 12, 2010