Mad Libs Etymology

Mad libs comes from the combination of Mad + ad lib which means the following according to www.dictionary.com:

ad lib /æd ˈlɪb, ˈæd/ Pronunciation Key - Show Spelled Pronunciation[ad lib, ad] Pronunciation Key - Show IPA Pronunciation

–noun

1.	something improvised in speech, music, etc.: Was that joke part of your speech or an ad lib?

2.	at one's pleasure; without restriction.

3.	freely; as needed; without stint: Water can be given to the patients ad lib.

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[Origin: 1810–20; see ad libitum]

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