作り話

彼の話は全部作り話だ。

His story is a complete fabrication.

そんな作り話にだまされるほど子供じゃないよ。

I'm not so childish as to be fooled by a made-up story like that.

その幽霊の噂は、誰かの作り話が広まったものらしい。

That ghost rumor apparently started as someone's invented story that spread.