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Meaning of off-the-wall

off-the-wall

Pronunciation: (ôf'u-wôl', of'-), [key]
— adj. Informal.
  1. markedly unconventional; bizarre; oddball: an unpredictable, off-the-wall personality.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.