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This word is a combination of informal and formal address to a teacher, professor or authoritative figure. The prefix 'bro' is commonly used for addressing friends (see 'bro' or 'brother').
Teacher: "Does anyone have any further questions?"
Student: "Excuse me bro sir... opps I mean, sir."
by moore.st September 01, 2009

Words related to bro sir

bro broseph brosir sir teacher