fart in an elevator

derogatory slang

(slang, derogatory) Something proverbially unpopular or useless.

Japanese Meaning

評判が悪い、全く歓迎されず、価値がないもの。 / 役に立たず、無用で存在が忌避されるもの。

彼をプロジェクトに参加させたのは完全な無駄で、何の役にも立たず皆の足を引っ張った。

Sense（1）

(slang, derogatory) Something proverbially unpopular or useless.

Second, if I told people that God didn't create the world, I have a feeling it would probably go over about as big as a fart in an elevator.