YOU SAID:
You are dumber than a sack of potatoes.
INTO JAPANESE
あなたはジャガイモの袋よりも愚かです。
BACK INTO ENGLISH
You are dumber than a bag of potatoes.
INTO JAPANESE
あなたはジャガイモの袋よりも愚かです。
BACK INTO ENGLISH
You are stupider than a bag of potatoes.
INTO JAPANESE
あなたはジャガイモ一袋よりも愚かです。
BACK INTO ENGLISH
You are stupider than a bag of potatoes.
That didn't even make that much sense in English.