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Any bloke from Hackney, especially if his name is Vinny.
I was in Puerto Escondido on vacation fro two months...Ay cabron! You're nothing but a bloody hoser!
hoser by bacocho April 27, 2011
hoser equals the american use of idiot.
You're all a bunch of fucking hosers.
hoser by Laura February 11, 2005
American military (Navy) slang term referring to someone who performs felatio on men.
"If I see you two together any more often than I do, I'll start wondering which of you is the hoser."

or, as per Canadian

"Don't be such a hoser."
hoser by Adrian Palmer April 6, 2005
Someone who did something stupid that demands satisfaction!
You hoser Billy...you screwed us over bad.
hoser by Joel July 9, 2004
See worddog/word.
hoser by Anonymous May 15, 2003
A term used to describe extremist members of volunteer fire-fighter groups. A hoser is one who holds the hose, while the actual firefighters are doing the real work. They frequent local coffeeshops till the wee morning hours. They communicate by radio, even when in close proximity to one another. Their larger-than-necessary trucks are adorned with firefighting decals and various lights. Usually overweight, they are never at a loss for displaying their newest Motorola device.
Dude, why do all the hosers have to stare at people when they pull into Dunkin' Donuts? When will they ever get a life? Someone start a fire!
hoser by Josh January 3, 2004