What does that code for episodes of "The Simpsons mean?"?!

Question: I've been really confused with all of the codes for Simpsons Episodes. For Example, For the episode "Moe 'n a lisa" The code is #HABF19. Can anyone tell me what that means?

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Answers: I've been really confused with all of the codes for Simpsons Episodes. For Example, For the episode "Moe 'n a lisa" The code is #HABF19. Can anyone tell me what that means?

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it's merely an in-house production code. it's probably an in joke.

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