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71.
Cool ; impressive
Emily is boss.

That skateboard trick was boss!
by Kandygrl7 June 26, 2009
 
1.
Incrediably Awesome; miraculous; great
Dude, did you see that chick? She's fuckin' Boss!
by John December 15, 2002
 
2.
noun-a person who is a leader, someone who runs shit in his/her hood or city.

If you got more than $100 G's in the bank and stackin paper every day, more than likely you are a Boss.
by Tiffany aka Ya Girl Miss Tiff October 25, 2005
 
3.
Cool. Awesome.

An expression from the mid 1950s, which fell from favor by the early 1960s.
Sal Bufardesi let a tremendous binderfender in class one day, grinned, and said "that's boss!"
by Cap'n Bullmoose April 23, 2005
 
4.
Bosses are like diapers: Full of shit and all over your ass.
My boss had nothing to do, so he watched me work all day today.
by Cap'n Bullmoose April 23, 2005
 
5.
something that is unusally "awesome" or "cool."
Have you seen Mark's new car? It's so boss!
by Rachelleio February 21, 2003
 
6.
In a video game the a big enemy at the end of the level. Defeated in the boss fight.
"Holy crap! The boss in the first level of Contra is totally weak!"
by Brian Johnson April 10, 2004
 
7.
Used to address people in a friendly manner (as in not implying they are your employer or master).
Them: Yo!
You: Hey up boss, whats up?
by Joshtek July 01, 2003