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Igaloo brother is defined as two men that fuck the same girl in the ass, therefore having to accept certain concessions when each other asks. Not to be confused with eskimo borthers which is sex in the pussy.
1st guy: Yo man i fucked Charlene in the ass last night
2nd guy: I fucked her last Tuesday bro
1st guy: igaloo brother
2nd guy: buy me a drink
by mdeisel98 June 06, 2011