as much use as a chocolate fireguard

Phrase

humorous

(simile, humorous) Useless; pointless.

Japanese Meaning

全く役に立たない / 無用の長物 / まったく意味がない

Leaving my umbrella at home was as much use as a chocolate fireguard during the downpour.

大雨のときに傘を家に置いてきてしまうのは、チョコレートの防火柵ほど役に立たない。

Sense（1）

(simile, humorous) Useless; pointless.