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When a group (usually 5 or more) stand in a line in front of a urinal. The men all insert their penises into the mans anus in front of them and simultanously urinate. The man on the end is the "Nozzle", which is considered to be quite an honor since this person will supposedly have the biggest orgasm.
"One of the favorite activites at this years Gay Pride festival is the annual Houston Fire House celebration"

"I want to be the nozzle on the next Houston Fire Hose"
by Assramses October 25, 2006
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