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1. on the fly
describing something done in a casual or informal manner; also, something said or done quickly or in passing.
"I just processed that order on the fly without making any notes."

"I don't remember mentioning anything about the party to Jenn's sister, must have said it on the fly."
by hipster Jul 9, 2005 add a video
2. on the fly
as quickly as possible
I need that chicken dish on the fly!
by aaron Dec 2, 2003 add a video
3. on the fly
The ability to do a task when one is away from home, usually in a technology realm.
Checking my email on the fly is easy with my cell phone.
by Ralos led Naes Jan 9, 2005 add a video
4. on the fly
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"
5. on the fly
To hop a moving freight train.
"The train didn't stop there so we had to catch out on the fly."
6. on the fly
used at the end of ya drink order at cha local coffee joint when ya wants it to go
I'll have a double half-caf latte on the fly.
by Tentochi Feb 11, 2005 add a video
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