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3.
Phrase that can be used as a put down or used to ask someone to chill out or calm the fuck down.

Dude: "dude what the fuck, thats my girl your kissing!"
Friend responds with: "Chill bro."
Dude: "dude what the fuck, thats my girl you were kissing!"
Friend responds with: "Chill bro."
by Chillest Bro April 04, 2011
 
1.
just an easy going bro who doesnt get too excited and always keeps his composure when in a tight spot. comes through in clutch when a bro's in need. and obviously drops "chill bro's" all day!

credit goes to Troy Snatz
-" bro you just smoked all my weed!"
- "chill bro"

-"Hey! you kids arent on the list your not getting in here"
- "chill bro"
by killyo'self June 14, 2010
 
2.
Somebody who tries to be cool with everybody, and fit in where ever he may go. The rational thought of a Chill Bro is severly slanted when compared to any normal person. The ideas brewed within a Chill Bros mind are enough to chill normal people to the bone. Occasional contact with Chill Bros is sometimes impossible to avoid, although be warned, too much contact may result in a normal person catching hypothermia, or even frostbite. Any and all ideas, actions, or motives presented by a chill bro, shall be classified simply as, Chill.
Man, I wish there werent so many Chill Bros around, i'm gunna catch a cold.
by thats chillll April 24, 2009
 
4.
A weekly radio show produced by two Ryerson Radio and Television Arts students featuring chill music, smooth vibes and good beats. They use the term 'chill, bro' whenever something happens that isn't chill. www.chill-bro.tumblr.com
Anthony was annoyed at his digital media assignment and ready to give double middles to the world, but Joey told him to "Chill Bro."
by Chill, Bro. October 23, 2011
 
5.
A chill bro is a male who shares traits similar to bros, skaters, punks, and partiers. A Chill bro's main concern is to get intoxicated and have a good time, but can also enjoy themselves when surrounded by fast cars or motorcycles, and especially while at a race track. Enjoys Motocross. Chill bros enjoy modifying their cars whether it is a lifted truck, or a 98 Saturn. Chill bros listen to whatever fits their mood but generally enjoy blasting kid cudi, rise against, lil wayne, or sublime. Chill bros like their music loud. They can be found wearing things such as DC, Billabong, Metal Mulisha, or supporting their favortime Motorcycle manufacturer. Skate shoes, shoe string belts, and oakley shades are appropriate.Fitted hats to match are a must. Chill bros mostly drink monster/rockstar, or cold beers. Once again, a chill bros main concern is having a good time.
Travis Pastrana+Ryan Sheckler+Travis Barker=Chill Bro
by jaytwo February 22, 2010