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Little tiny insects that tend to die when they make love with cigarette ends.
Hey dude! That firefly is dirtying your cigarette end!!
via giphy
by The agar \_/ BACFORD July 05, 2016
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15
Since the only definition of fireflies are about that stupid, overplayed song, I'm writing a real one.

Fireflies are little bugs that have chemicals to make their abdomens light up. They do this to attract mates, but it looks pretty damn cool also.

They are also for catching and putting in jars ^_^
Me and my friend went out and caught fireflies yesterday.
by Haxed13 December 10, 2009
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17
Firefly is by far the most Goram best set in space t-v series of all time. Bar none!!
"Hey Jimmy, this is so Goram good" "Oi Noonga, it surely is, it's so good it's firefly"
by Mooty with the big booty December 06, 2019
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18
a brand of sweet tea vodka brewed in South Carolina. Tastes wonderful when made as an Arnold Palmer (Lemonade, Sweet tea vodka, and a splash of water) but taste like syrup when drank alone. This new vodka captivates preppy and southern charm in a glass.
Muffy and I sipped Firefly and had finger sandwiches in our sundresses and big hats at the horse races.
by CharlestonCharmer March 26, 2009
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19
When a guy receives a blowjob while the person giving has pop-rocks in their mouth
David: Dude Allison gave me a firefly last night and one of the pop-rocks got in my dick hole and hurts like hell now!

Ethan: That sucks, sounds like something from two kids one sandbox...
by Fireflylover69 November 25, 2009
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20
A very common drink in Mississippi. Ole Miss frat boys and sorority girls often drink this when at parties or tailgating in The Grove. A sweet tea vodka drink that is produced in South Carolina. The classiest drink in the south.
"Sue Anne, lets drink Firefly's before the game."
"Ok! We are gonna crush LSU."
by mississippi girl December 08, 2009
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