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10.
A nickname U.S. Marines call eachother.

This term used to be an insult during the post-Vietnam era when servicemembers came home to being called "baby killers". It was turned around and made positive.
"Hey killer."

"Woah slow down there, killer"

"MUZZLE AWARENESS, KILLER!"
by jaynahc April 06, 2009
 
1.
very cool
That laser light show was killer!
by Bungalow Bill December 12, 2001
 
2.
A name given to someone who suddenly becomes over agressive and violent.
Woa slow down killer!
by Matt Mcelhinney August 26, 2005
 
3.
Awesome band; The Killers are from Las Vegas, Nevada. The band is made up of Brandon Flowers- vocals, Dave Keuning- guitar, Mark Stoermer- bass, and Ronnie Vannucci- drums.
The new single from The Killers is called Bones, it was directed by Tim Burton.
by Natalia Lucio November 27, 2006
 
4.
an adjective used to describe high quality thc based substances.
damn, those are some killer thai sticks.
by toomuchtime September 15, 2005
 
5.
O.J. Simpson
(person 1) should i get the apple juice or the orange juice?
(person 2) i'd go for the apple juice cuz the oj is killer
by tripp296 December 29, 2008
 
6.
Excellent,outstanding,extreemely satisfying.Very powerfull.All you can take.
Have you tried the burgers at the new choke and puke? They are killer.
That was one killer movie we say last night.
by wright May 21, 2005
 
7.
really strong weed. killer weed
man you got any killer
yea yea 10 bucks a g

this killer is killer
by Don Eval March 09, 2008