on the fly — while in motion or in the middle of doing something else, without stopping to plan; spontaneously or improvised
Part of speech: ADVERB
Definition: while in motion or in the middle of doing something else, without stopping to plan; spontaneously or improvised
Pronunciation (IPA): /ɑn ðə flaɪ/
Example Sentences
- My professor writes his exam questions on the fly, so nobody can predict what he'll ask.
- The chef ran out of garlic mid-recipe and had to improvise on the fly, turning the dish into 'mystery pasta'.
- Good comedians can adjust their jokes on the fly based on the audience's reaction.
on the fly
ADVERB[/ɑn ðə flaɪ/]
while in motion or in the middle of doing something else, without stopping to plan; spontaneously or improvised
The chef changed the recipe on the fly when a guest mentioned an allergy.
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🎤Pronunciation
🌳Etymology
Origin
This phrase originated in baseball and aviation terminology, where 'fly' refers to the act of flying or moving through the air rather than the insect. It first appeared in the baseball context 'catch a ball on the fly,' meaning to catch a ball in mid-air before it touches the ground. The expression later evolved metaphorically to mean performing actions in motion, without stopping or pausing, and is now widely used in IT and business contexts to describe real-time or improvised actions.
Breakdown
on (during, in the midst of) + the + fly (in flight, moving through the air) = literally 'during flight,' figuratively 'while in motion' or 'in the process of doing something without interruption.'
🎵Rhyme
🔗Collocations
📝Examples
“My professor writes his exam questions on the fly, so nobody can predict what he'll ask.”
“The chef ran out of garlic mid-recipe and had to improvise on the fly, turning the dish into 'mystery pasta'.”
“Good comedians can adjust their jokes on the fly based on the audience's reaction.”
“I forgot my presentation slides, so I had to explain the entire project on the fly, using only hand gestures and desperate eye contact.”
📚Related Words
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