When someone gets a glowstick stuck in their ass during sex!
Were raving all night long, one thing lead to another we banged n she got fireflied! Nothing like lighten up that ass!
by MattyMcBeaverton February 10, 2011
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A song by Owl City that is a Postal Service rip off. Really shitty, pretentious lyrics. Somehow it made the number 1 song on iTunes.
Owl City guy singing Fireflies: Everything is never as it seems.

Thom Yorke: Shut the fuck up.
by Fitter Happier November 20, 2009
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That certain feeling you get when you suddenly realize that you're in love. You dont know what to do with yourself and you're not exactly sure how it all happened. All you know is that you dont have to be alone anymore, you never have to wonder what the fuss of love is all about. You're not done with your journeys yet, but both of you know that you've already won. Its a feeling thats stronger than butterfiles, right in the pit of your stomach and it makes you feel like you're going to float away. As long as you have the one(s) that you love, you'll always have a hand to help keep you down :)
by GrlNextDoor55 December 5, 2009
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besides an insect and a tv show, also a great song by breaking benjamin
Fuck you firefly, have you lost your light.
by Adrian March 6, 2005
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Firefly Could you shine your light
Now I know your ways
'cause they're just like mine
Now I'm justified
As I fall in line
And it's hard to try
When you're open wide
by Willie the Great April 21, 2005
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TO masturbate ones girlfriend to the point of excretion of seminal fluids, whilst jumping out of an airplane, using a flashlight.
BRO I heard you gave her the firefly yesterday!!!!!!!
by mikehunt bendover nelson August 16, 2011
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The act of taking a lit cigarette bud and throwing it at a nearby pedestrian/friend. More often than not, if the victim is not a friend, they will get pissed.
Person 1: Hey, dude?? -Takes a hit from his cigarette-

Person 2: Yeah? -Turns to face him-

Person 1: FIREFLY. -Proceeds to throw burning cigarette bud at victim-

Person 2: AH. DICK. YOU HIT ME IN THE EYE. D:<
by TuEresMuyBlanco January 17, 2011
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