Boss 

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?

Boss by Joshtek July 1, 2003

Boss 

Totally cool, awesome, the best.
Someone who is the leader, above all - higher power.
Someone who does something out of the ordinary that requires balls and is really cool, bold, almost impossible,
and just BOSS. Word popularized by Neil Patel, one who demostrated the meaning of "Boss" many times.

Yo, look at that guy over there man hes sooo BOSS!
Damn that watch looks Boss.
Thats a BOSS ride over there.
Wow, what he did was pretty Boss
Yo that shit is pretty Boss.
He gets all the bitches, he's such a Boss.

Boss by B0SS September 1, 2007

boss 

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!"

boss by Cap'n Bullmoose April 23, 2005

Boss 

Boss is an acronym, meaning Business.Over.Stupid .Shit

We on some boss shit over here.

Boss by Lokey281 February 7, 2012

boss 

Liverpool slang for 'great'

'That re-make of Texas Chainsaw Masacre is boss!!'

boss by Becca December 4, 2004

Boss 

something that is unusally "awesome" or "cool."

Have you seen Mark's new car? It's so boss!

Boss by Rachelleio February 21, 2003

boss 

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.

boss by Cap'n Bullmoose April 23, 2005