used as an insult or threat. especially if you can't think of anything. sometimes is considered STRONG LANGUAGE.
that person who sits next to you: (steals eraser) ha! ha! ha!
you: give that back or i'll.......
that person who sits next to you: or you'll what?
you: quack you!
you: give that back or i'll.......
that person who sits next to you: or you'll what?
you: quack you!
by PIGGYWISDOM March 14, 2013

a graphic redneck video of a man shaking his junk and preaching about how he wants to fuck a girl in the but while she quacks like a duck
by ammoratto April 15, 2013

by Hoverbacon November 04, 2015
