- The definition of far out is slang for something that is unusual or innovative.
An example of far out is a really hot new outfit worn by a fashion model that is very different from anything ever designed before.
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far-out - Phrases/Idioms
Unusual or eccentric; very advanced. for example, Painting blindfolded, that's far out, or Her child-rearing theories are far out.
An interjection meaning “great” or “cool,” as in All he could say when he won the lottery was “Far out!” Originally a slang term for daringly creative jazz, this expression has been applied to other art forms and undertakings. [Colloquial; mid-1900s]