3
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.
"I hit a lick on that duck ass fool for 10 racks because his stupid ass didn't have a tool."

"That fuckin' duck let them people search his car and got pieced up."
by BR Phat March 03, 2013
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4
A duck is a wholly wonderful creature. They also say "quack"
Duck: "Quack..."
by Simon April 12, 2004
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5
Used as a discreet word for fuck

As an example you can use it if you're in a family gathering and you just have to swear but there's children around.
Oh duck, I forgot to check my steak
by Soppeldunk December 02, 2016
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