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15.
A slang term used to refer to something as fashionably attractive or impressive. Hammer refers to "2 Legit 2 Quit", a song by rap artist Hammer, released in 1991 as both the title track and first single of his third studio album, Too Legit to Quit. It proved to be successful in the U.S., peaking at the Top 10 of the Billboard Hot 100, at #5. The single also peaked at #60 on the UK Singles Chart. Hit songs "This is the Way We Roll" and "2 Legit 2 Quit" were performed by Hammer on Saturday Night Live. Along with "Addams Groove", and other songs, "2 Legit 2 Quit" was featured in the film The Addams Family in 1991.
Rap artists of the 2010's used the term to replace "Cool" or "Legit".
EXAMPLE 1:
"Yo dawg, that shit is Hammer"
EXAMPLE 2:
Mikey: "Yo, check out this new vapor pen I got from the vapor shop"
Mr. Locs: "Hammer."
by tommartinezjr December 10, 2013
 
16.
to give recognition to a person for crafting something of a high standard.
"Hammers to John for building that solid skate ramp."
by lisasimpson May 27, 2013
 
17.
A tool used to insert nails into wood. (no pun intended)
Also used by sick minded assholes who are sexually frustrated
I WANNA HAMMER YEW!!!!
by zdfgujhokpl[] April 23, 2013
 
18.
ham·mer n.

A particularity difficult and gnarly trick performed on a skateboard, the emphasis being on the sickness, as opposed to grace or flair of its execution. Usually down or over a large obstacle, more often than not, sets of stairs and handrails, often switch and at great risk to the skateboardist.

Origins: Popularised and derived from "Hammertime" (MC Hammer), to Hammer (verb), and then to noun, e.g. a Hammer is the product of said ‘Hammertime’ (to ‘go off’, ‘come up’, ‘kill it’ or ‘bust out’).

This meaning of Hammer is promoted most vigorously by Jim Greco. Although once a staple of the 'Hesh' community, Hammers now transcend all hesh/fresh barriers, as the documentation of such Hammers is closely linked with making mo' money though incentives and sponsorship, and translates seamlessly into the philosophy of mainstream rap.
"I got a mad hammer filmed for my part, i'm so ill I make me sick"

"yeah he can throw mad hammers, whatever, his steez mings; pushes like a buggered penguin having an epileptic fit"
by bmr May 11, 2004
 
19.
The Dumbest person on the face of the earth. A Hammer gets in people's ways and annoys them while they are trying to work, and, while he is supposed to be working, stands around and acts stupid. If you have someone at your workplace who follows you for the sake of following you, has his hands in his pockets, drills holes in the wrong places, or drops your flashlight and breaks the bulb, and you are on a construction site, it is likely that you are working with a Hammer. If you are a Hammer, you may as well make a career out of stocking shelves at Walmart or being a dishwasher at Denny's.
Hammer, PLEASE go be a moron elsewhere so that I can actually do my Job.
by metalforhim777 September 22, 2011
 
20.
Nickname for Hamilton, Ontario, Canada.
I'm from the Hammer! We invented Tim Horton's, eh?
by Hammerite December 20, 2006
 
21.
the hammer of a gun
my hammers jammed , my gat wont shoot

the hammer of my gun is disfunctional , my gun wont shoot
by DAS November 23, 2003