A "pyro" is a person addicted to fire. Most of society (mainly teenagers) claim to be pyros, just because they like to play with fire. In fact,

"pyro" is short for pyromania, and it is a mental addiction to fire. For a pyromaniac, it's not normal to go a day without fire. They usually handle themselves well normally, but when around fire they could become jittery, aggressive, and obsessive compulsive. They can be obsessed with exploding things, may carry lighters at all times, and may have mental disorders such as Schizophrenia and Psychopathy. If someone is a "pyro" it is extremely noticeable.
Pyro: Dude, this morning I made 3 drano-bombs, and lit them all off at the same time. It was awesome! I also added another 2 lighters to my collection. Want to come over later? I think I'm going to make some more bombs. I hope the bomb squad doesn't catch me this time. Later me and some friends might go light this guys house on fire too!
by Immaperson May 8, 2009
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a gas masked fire freak who carrys a flame thrower and a gas mask whear ever he goes, a pyro ussally likes setting pepole on fire for a living and loves hurting and killing pepole with explosives. but a pyro often thinks other wise about what he is doing. for example the pyro will chop someones arm off with a fire axe but thinks hes giving a baby a large lollypop. the pyro has his own town called pyroland and the mayor off this town is the ballooncorn. the ballooncorn overtakes the person (he/she) who is the pyro and makes theam do stuff like that wall making theam think other wise. the pyro often sais huda huda...also you can tell if he/she is a pyro if the person talks about ballooncorns such as in this exapmle.
1: please no voilents!
2:BALLOONCORN!
1:A BALLOONCORN IS A PYRO!
2:huda huda
2:mwahhaha
1:FUCK NO HELP!!!!
by pyro emo boss August 9, 2012
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Either A) a person who enjoys burning things or B) a person who like fire in general.
Jason is always having campfires, i think hes a Pyro.
by PyroSkelly March 23, 2016
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My nickname ive gotten because of being a pyro main.
Watr: Yo guys have u seen pyro's new video?
Trey: Yeah it was gay as fuck LOL
by thatpyromainlol December 24, 2020
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A term that expresses that target person is extremely insane, with extreme cases of megalomania, multiple personalities, and obsessed with fire. Persons like this should be treated with caution.
"Hey, did you hear what that guy did? He burned down a teacher's house!"
"Yeah, he's such a Pyro."
by Original Pyro December 1, 2006
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Pyro (tf2), a cheap son of a bitch that doesn't know how to aim.
Example:

Guy1: You're so bad I'm spam killing you

Guy2: SHUT THE FUCK UP YOU LITTLE BITCH YOU CAN'T EVEN AIM THE ONLY REASON WHY YOU ARE KILLING ME IS BECAUSE YOU'RE PYRO FDHIBTR&GDBXWHuVAGGGAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHHHHH
by ToastyDaBestest February 16, 2021
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