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2.
Definition:
The card you pull on a friend to get what you want. It cannot be turned down without making the "bro" out to be a bad friend. Usually stated..."If you were my bro..." with no need to finish the sentence. * The Bro Card may never be pulled on a bro card itself.
Example:
1- C'mon man hand me a card under the table.
2- No Dude! I dont cheat!
1- If you were my bro.... (The Bro Card)
2- Ughhhh!! Alright! Here!
1- Thanks BRO!

*1- If you were my bro you would eat a booger."

2- If YOU were MY bro you wouldnt ask me to.
by clownkid18 January 10, 2012
 
1.
A card that is technically imaginary but has great sentimental value to the two owners. The Bro Card can only be used between two bros. To use The Bro Card properly one must give the card to his bro and ask for a favor or deed. Regardless of how bad that bro does not want to complete the favor he must, but in return they may now use The Bro Card when he wants for whatever he wants (respectively speaking) except to reverse the favor just asked of them. The Bro Card is a sacred ritual practiced by the best of friends.
Dude 1: "Dude, I need you to do me a solid, I need you to go on this double date on me"

Dude 2: "With that ugly chick? No fricken way dude!"

Dude 1: "Ah come one man, I've got to pull out 'The Bro Card' on this one"

Dude 2: "Damn dude, alright I guess I have to"
by A_C_Unit August 29, 2011