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1.
The act of three male buddies doing something fun together that excludes their significant others.
1. Two guys is a bro-mance, three makes a bro-mangle.

2. Hunny, I'm going to have a bro-mangle tonight with Jim and Bob. We're going camping in the woods.
by jeffrey5fingerz July 04, 2013
 
2.
A Bromangle is a love triangle made up of men. Two men in a romance is a Bromance, three men in a relationship is a Bromangle.
Paula noticed that Simon and Randy had welcomed Steven into their Bromance creating a Bromangle.
by Great Scott October 30, 2011