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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
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.
eccentric, eccentric person, flake, geek
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tap / space
Classic usage
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