Wiktionary
see you later alligator
phr. (context slang English) au revoir, see you soon
Usage examples of "see you later alligator".
YOU BETTER PUT ON YOUR THINKING CAPS, OR IT'S SEE YOU LATER ALLIGATOR, AFTER A WHILE CROCODILE, DON'T FORGET TO WRITE.
All Bozo's dog tricks have names like that, 'Roll over rover', 'See you later alligator' and so on.