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1. a pyromaniac, some who sets fire to random people, animals, or objects as a form of gratification

2. any arsonist
(from a type of insect that has nothing to do with fire despite it's name)
That guy must be a firebug if he keeps starting fires like that.
by The Return Of Light Joker April 18, 2008
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Firebug is NOT an animal and has NOTHING to do with a firefly or any animal a firebug is slang for an arsonist or a serial arsonist.
If you light that house on fire you'll be a firebug so, DON'T DO IT.
by username420 November 27, 2020
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A girl who is so obsessed with meeting and dating firemen that she will start fires and put herself in danger to be rescued by them.
Johnson, shes a firebug. get rid of her before you get burned.
by NothStar December 16, 2010
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A sex worker utilizing a certain dating app for marketing purposes.
"I thought we were hitting it off, but then she named her rate and I realized she was a firebug."
by starfuk September 27, 2014
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A screenshot of a web page with edited HTML. Stems from the Firefox add-on Firebug, but can be done on some other browsers as well.
Guy 1 message: lol look at all the likes i got on this!
Guy 2 message: That is so firebugged...
by plasm March 2, 2013
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