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1. Very unconventional or unusual: manic, off-the-wall creativity; off-the-wall humor.
2. Exhibiting bizarre behavior; crazy: their off-the-wall friends.
(off the wall when postpositive) slang new or unexpected in an unconventional or eccentric way: an off-the-wall approach to humour.
[C20: possibly from the use of the phrase in handball and squash to describe a shot that is unexpected]
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|Adj.||1.||off-the-wall - conspicuously or grossly unconventional or unusual; "restaurants of bizarre design--one like a hat, another like a rabbit"; "famed for his eccentric spelling"; "a freakish combination of styles"; "his off-the-wall antics"; "the outlandish clothes of teenagers"; "outre and affected stage antics"|
unconventional - not conventional or conformist; "unconventional life styles"
1. weird, odd, strange, out there (slang), bizarre, extraordinary, fantastic, astonishing, curious, peculiar, eccentric, queer, singular, far-out (slang), outlandish, oddball (informal), left-field (informal), freakish surreal off-the-wall humour