when a dude is kept from his bros too long by girlfriend, work, or location and begins to miss them as one would miss there home after moving or a vacation. when this occurs he will only admit this to a dude if asked. if not asked by a dude he will keep it hidden till he is reunited with his bros and purge the sickness with an bro night
Restaurant

girlfriend: hey babe whats the matter you? you haven't touched your food.

deprived bro:... nothing just thinking

ease dropping bro: man that guy is bro sick
by kykymot December 31, 2011
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Sickest kid ever..not a bromosexual..a guy like Brodo Baggins just a kid who pounds natties and fist bumps with his other bros
Harry Brones and Bromeo are examples of a sick bro
by Brochacho #1 October 19, 2010
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a spin-off of the phrase, "cool story, bro." commonly used by stoners and bros.
Tim: So, when's the party?

Caleb: Later tonight, you coming?

Tim: Yeah, dude.

Alex: I memorized the quadratic formula.

Tim: Sick, bro.

Caleb: Yeah, sick bro.
by EE Czar March 22, 2010
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A sarcastic answer when somebody says something that is not cool or funny or entertaining in any way.
Joe: Yo yesterday I saw this crazy awesome movie.
Me: Sick bro.
by idboss December 12, 2011
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The favourite term of all Lebs and Leb-wannabes. Usually followed by sounds that closely resemble that of a coffee grinder. Most of the time is said in an aggressive manner whether it is intended to be so or not. Although not quite known, its meaning is said to be similar to when a male gorilla beats his chest. Therefore it can be used as both a form of acknowledgement and a warning.
"Lets go to Bankstown!"

"Fully Sick Bro!"

"Hey Habib, ur a stupid fuck!"

"Fully Sick Bro!"
by D.E March 19, 2004
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Why did the leb go to hospital?

Cos he was fully sick, bro!!!
Leb1 : Hey Pauli, check out da WRX!
Leb2 : Woah bro! Fully sick!
by billus April 1, 2004
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A phrase used commonly amongst complete retards who think they're from Surf City, California.

Why the hell are you talking like that? It's not funny. You sound like a dumb ass.
bro1: BRO, SUPER STOKED TO GO OUT TONIGHT.
bro2: YEAH BRO, OUTTA BE SUPER SICK BRO.
bro1: AW BRO I LOVE YOU LIKE A SUPER SICK BRO YOU ARE.
by superbro December 17, 2009
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