空そら事ごと

noun

fabrication; falsehood; lie

Refers to something made up or not true; often used in contexts where someone is telling a story or excuse that is not based on reality.

• 彼かれの話はなしは全ぜん部ぶそらごとだった。

  His story was all made up.

• そんなそらごとを信しんじる人ひとはいない。

  No one believes such a fabrication.