A fantasy prone
mid teen to late 40 year old guy that wears flip flops, big dog
t-shirts, sports a ponytail, and is more than likely to be overweight.
The name is derived from the
duck like sound emitted from the voice
box of this particular form of life.
Almost every single Quacker is into the fantasy tabletop game Warhammer, and recently Warhammer Online Age of Reckoning.