Definition of buck

buck

Ugly, unattractive female.
Yo look at her, shes buck!

by John R., New York, NY, USA, Apr 03 1998.
To start shooting.
Why u aint buckin son?

by ikon, CA, USA, Jan 19 2002.
naked.
im buck.

by jackson s., Brandon, SD, USA, Feb 07 2002.
a dollar
by John, Edgbaston, Birmingham, UK, May 07 2002.
"100 dollars."
Q: "Do you need any cash for tonight?" A: "I'm good; I've got a buck.

by Chelsea N., Champaign, IL 61821, USA, Jan 31 2005.
to shot at
she took the gun and started bucking

by Emily A., Feb 21 2007.
100 pounds in weight.
He weight about a buck fifty.

by WalterGR, Sacramento, CA, USA, Sep 28 2009.

noun

one hundred dollars
That bike is going to cost you a buck fifty ($150)

by Crispy, Durango, CO, USA, Nov 13 2004.
dollar.
by Crispy, Durango, CO, USA, Nov 13 2004.

verb

To shoot a gun.
He was bucking at them.

by Brian, Michigan, USA, Feb 08 2005.
to fight
Joe and Peter were bucking.

by Brian, Michigan, USA, Feb 08 2005.
to shoot at someone
Catch a nigga slippin run up on them buck 'em -- 50 Cent, My Toy Soldier

by skully, New York, NY, USA, Apr 08 2005.
Attempting to acquire or achieve.
I'm still bucking for a promotion

by Hagan, B., Jul 27 2006.
To strive for.
I'm still bucking for a promotion

by Hagan, B., Jul 27 2006.