Buck

Another word for the small of the back. The indentation between the butt and lower back.

Can also be used as a verb: bucking is often carried out in groups of two or more. One person will lay on their front, whilst the partner will lay on their front or side and lay their head on the buck of the first person. If all partied lie on their fronts a chain effect can be created where lots of people can buck simultaneously.
After a session of bucking the bucker and buckee may become clammy on either buck or face.

"He has SUCH a nice buck, it was so comfortable I fell asleep on it"
"We were bucking all night long"
"Everybody needs a buck for a pillow"

by [e-mail] December 6, 2009

buck

like wild,like u crazy and u dont give a f*ck!

Dang man she is buck!

by Sa'Ra July 2, 2003

buck

to come very quickly

we didn't take longed because he bucked

by el shaddai November 3, 2004

buck

to be incredibly annoying and obnoxious to an awkwardly immense and equal degree

Dude, that guy totally bucks hardcore

by Cpt. Luckky Chaps March 8, 2004

Buck

a person, place, or thing with many positive qualities is said to be "buck"

man my girl friend is Buck !

by hamghetti... September 22, 2008

Buck

a person, place, or thing with many positive qualities is said to be "buck"

man my girl friend is Buck !

by hamghetti... July 15, 2008

buck

The combination of "butt" and "back"; this results when a girl does not have an ass, and so it is not possible to determine where her ass stops and her back starts

"Hey, did you check out Kristy? She's really hot."
"Well, her face is anyway, but she has a buck. She needs some junk in the trunk. Such a waste of a good-looking girl."

by K-13er September 1, 2007