Now how did we learn to fly?
I don't know whether there is an english analogon. Here we say: I'm just out (= on the fly?) to fetch some cigarettes! (meaning: and won't be seen ever after.)
In English "on the fly" usually means something done casually without much forethought.
http://www.urbandictionary.com/define.php?term=on the fly
We say "must fly!" when we need to leave in a hurry, as a stronger form of "must run!" when late for something.
It is really a great cartoon!
I think that the cartoon does not reveal the whole thing... Right after this scene, the second fish follows and there is no other way for the first to escape than flying
And the first fish said:
"To the Moon, Alice!" -- Jackie Gleason in the Honeymooners
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