a phrase often used when something will never happen.
guy: Hey sexy, you me, lunch?

girl: When pigs can fly
by Diarrhea April 2, 2004
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A saying that once meant something would never happen. Rendered obsolete with the advent of the police helicopter.
“Cops aint gonna catch us, that will happen when pigs fly!”
“Bro the police helicopter is listening, shut up”
by Wypipo whisperer August 22, 2019
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