all rumors are true

humorous

(humorous) A rumor is usually unfounded.

Japanese Meaning

（ユーモラスな表現で）噂は通常、根拠が乏しいものだと皮肉を込めて示す

In our town, people act like all rumors are true, even when they're clearly invented for fun.

うちの町では、たとえ明らかに作り話でも、人々はすべての噂を本当だと信じて行動する。

Sense（1）

(humorous) A rumor is usually unfounded.