off the wall
idiomPart ofwall
off the wall — idiom
1. unusual, unexpected, or slightly crazy in a way that people may find interesting
1.idiom
Definition
unusual, unexpected, or slightly crazy in a way that people may find interesting or strange.
Example
Some of Michael's ideas seemed off the wall at first, but they actually worked well.
Her off-the-wall sense of humor made everyone laugh at the party.