look up any word, like ratchet:
 
2.
a typical situation in which a person is talking in the presence of friends and says something unaware of what they said has more behind it, which is then verified by a silent stare and nod by your buds
dave: so listen guys this chloe girl says shes single and has been for a while and would like to meet up sometime

bob: uh huh (looks over to carl, and thinks the same chloe who had sex with matt two days ago)

carl: thats cool man ( looks over to dave and silently confirms using bro-knowledge )
by mcfriedness October 08, 2011
 
1.
The knowledge and general rules of the brohood that is shared among your close friends or bros.
Its always bros before hoes thats just general bro-knowledge.
by Rcran February 20, 2008