A Broment is when two's or more bro's connect emotionally, mentally or spiritually in a moment of success or celebration.
Arnold: "Man, me and Giuseppe had a broment"
Jimmy: "What happened"?
Arnold: "We wingman'd each other and both got laid last night with chicks at the bar"
Jimmy: "Fucking eh, bro!" "Gotta get me a broment."
Arnold: "It will change your life bro!"