FYI, fire hydrant chic is Gigi’s bottom line concern when you bring home the next “super cute” but highly embarrassing freak-wear costume from Petco or PetSmart.
A person who's going on and on about a subject they're interested in, not letting others get a word in edgewise. By spewing a constant stream of information, they become the human equivalent of an open fire hydrant.
Jeez, Jon, you haven't stopped talking about 3D printing all night; you're being a real verbal fire hydrant!
The act of two men, double penetrating a female, cumming at the same time in her mouth and vagina, then punching her in the back of the rib cage causing her to spew it all out both ends...
Randy: Hey man, I heard your girlfriend was being a bitch!
When you have a facebook account and someone, usually a signifcant other, or someone that wants to be held in a higher postion in your pecking order feels the need to post, like, or make comments on your facebook page constantly in order to "mark their territory".
Akin to a dog "marking his/her territory" like a fire hydrant with urine.
Dennis: "I hung out with Shannon the other weekend and we had a good time."
Dennis: "But, she's left several comments and posts on my facebook page since then, it's kind of annoying."
Jeremy: "Archetypal facebook fire hydrant my friend..."