Brofidential 

adjective; meaning that something is only to be spoken about between two or more dudes/bros

Bret: Brofidentially, do you think I could get with Katy at the party tonite?

Keith: Totally dude, I won't tell her ex if you won't

Brofidential by El-Hombre-De-Arena January 8, 2012

Brofidentiality 

noun- a strict bond shared between two bros that talk about something that cannot be shared with chicks, babes, non-bros etc.
can also apply to brocrets that may threaten other bros or chick prospects.

This is full brofidentiality.

OK, not telling your girl about this.

Brofidentiality by BroMan101010101 September 17, 2012