In the food industry, when a server has the kitchen haul ass making a dish he/she either forgot or that the customer ordered last minute. A dish "on the fly" is top priority.
"Oh shit, I forgot the manicotti! Well, I better tell the kitchen to make it on the fly"
by yomomo March 20, 2008
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When an person/animal is lying down & you run up to them, fart on their head, & leave the room.
"You should have seen the look on my cats face when I did a fly-by on him last night! He now twitches & I'm waiting for his left eyebrow to grow back! Priceless!"

"Dude, I did a fly-by on my mom yesterday! She didn't find it as funny as I did. Anyways, I can't come over, I'm grounded!"

Lassie: "Woof woof woof Timmy, woof woof fly-by woof, Fluffy, woof woof woof!"
by NoLongerStevesMcQueen! October 20, 2014
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1.Insect equivalent to the annoyingness of bees or mosquitos.
2. An insect that makes you scream when it lands on your skin
3.An insect

4. (adjective) Multiple, or a group of flies
1. That is fly is as annoying as an unquenchable hunger
2. The fly landing on Jim, and he screamed like a fugging banshee
3. A fly's most common form is a house fly
4.There were multiple fruit flies mating on the decaying fruit
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v., to feel as though you're high and/or floating, especially after a BDSM-related experience mixing pleasure and pain
After about 5 minutes under Jamie's cane, Casey was flying.
by Erudit June 4, 2009
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The stupid little worthless flying bug that lands on your window and has a fucking seizure on it and when the curtains are pulled away, the stupid little thing still cant find a way out and doesn't go away.
Fly 1: OH MA GAWD I CANT GET OUT!!!!! *has seizure*
Fly 2: Window is wide open dumb-ass!!!
Fly 1: Oh, ok.... *doesn't go away.*
Fly swatter: HA YOU STUPID THING! *smacks the hell outta the fly*
by mehmehmehmehFLY June 4, 2011
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Chcek out this song I made on the fly: "John's house in the middle of East Reach" (sung to the tune of Madness's Our House)
by the_rudster March 15, 2018
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Experiencing the effects of drugs.
I'm flying pretty high on some dynamite coke right now!
by Uncle Al April 15, 2005
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