A water chicken.

A stupid person; it refers to the lack of surface area on an individual's brain. The general thought is that the more surface area (wrinkles, creases, etc.) a brain has, the smarter the person is. Conversely, a person with a smooth brain (no wrinkles) has less surface area and would therefore be stupid.

auto- correct for Fuck

A gullible or easily fooled person; an easy target for any kind of trickery.

Some examples:
- Someone who is an easy target for police
- Someone easily robbed or jacked
- Someone who won't retaliate or defend themselves
- Someone who is easy to con or run game on
- Someone who is fake

Originates from the act of duck hunting - the duck is easily hunted and taken out by the hunter.

A truly evil creature with little to no remorse.

A duck is a wholly wonderful creature. They also say "quack"

What the iPhone autocorrects "fuck" to, when never do you ever actually mean to type "duck".