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1.
is having a connection with one of your friends who is a guy. If you have one it means you are very close(not gay).
Brooke:Are you and Josh gay?

JR:Nah, we just have a bronnection.
by TehPkmnMaster69mmm April 08, 2010
 
2.
The act of being the mutual bro that bronnects the broship.
See also: Bronnector Bronnect Bronnecting Brolationship
"So how do you two know each other?"
"Oh Kati is the bronnection"
by lexi96 April 05, 2012
 
3.
When two bros share a totally non homosexual intimate connection
After a few too many strawberry daiquiris and mojitos, it was obvious me and charlie had a serious bronnection
by the slaig June 02, 2011