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When you are nailing your girl in the ass, pull out and spit on her back/ass (making her think you finished). Then when she turns around, blast her in the face with your actual load, completely surprising her like a fireman with his hose.
David: "dude, jenna was being a bitch lately so i surprise fireman'ed her last night."
kyle: "nice, that oughta do the trick!"
by Stcsucks08 November 06, 2011
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