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oddball

/ˈɑːdˌbɔl/ noun

First recorded: 1930 Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about oddball at Wordnik → Where our words come from →

  1. A person with an unusual or odd personality.

Origin

Compound of odd + ball. First used in late 1930s, describing an extra ball played as a bonus in pin-ball type games. Well-attested since the 1940s, with the adjective appearing earlier than the noun.

From Wiktionary, via Kaikki.org (CC BY-SA)