Dictionary
odd•ball
Pronunciation: (od'bôl"), [key] Informal.
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n.
a person or thing that is atypical, bizarre, eccentric, or nonconforming, esp. one having beliefs that are unusual but harmless.
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adj.
whimsically free-spirited; eccentric; atypical:
an oddball scheme. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.