Slang term for throwing someone out of a high window in an attempt to kill them, or defenestration. Originates from Tom Francis' game Gunpoint, where one of the protagonist's main methods of defeating his adversaries is shoving them out windows. There is also a track in the game's soundtrack entitled "The Five-Floor Goodbye", which was composed by Ryan Ike.
Gangster 1: "Did you hear the news? Johnny tried getting a raise from the boss and ended up getting the five-floor goodbye."

Gangster 2: "Damn. Hope I'm not the one that get's stuck cleaning the mess."
by NobleGryphon January 31, 2016
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