A large butt plug, so named because it resembles a fire hydrant in size.
Baby loves her hydrant more than she loves me.
by Col. Dr. April 23, 2006
3 more definitions
Top Definition
a bathroom or toliet.
does anyone have to use the hydrant?

excuse me a second, i've gotta use the hydrant.
by Jesse Colburn March 29, 2008
Large Penis
Your not going to stick that Hydrant in me, it would split me wide open.
by Avienn September 10, 2009
a person who attracts the (often unwanted) attention of dogs.

see fire hydrant.
"he's always flirting with girls he wouldn't date in a million years."

"yeah, he's a total hydrant"
by hammond swiss March 20, 2005

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