make something up out of whole cloth
idiomPart ofcloth
make something up out of whole cloth — idiom
1. To invent a story, explanation, or claim that has no basis in truth or fact.
1.idiom
Definition
To invent a story, explanation, or claim that has no basis in truth or fact.
Example
The journalist made the entire interview out of whole cloth and was later fired.
No one believed the rumour — it was made up out of whole cloth by a rival company.