student asking question

What's "foolproof" mean? Is it like a "bulletproof?" Like, to protect from fools?

teacher

Native speaker’s answer

Rebecca

"Foolproof vest" is actually a play on a few words! In card games, the joker in medieval times was also referred to as the "fool." So Taylor combines "fool" and "bulletproof vest!" So yeah, you're right, it does imply a kind of protection from fools. "Foolproof" also means incapable of being wrong or misused, so the "foolproof vest" also protects her from being misused. Ex: After growing up with three brothers, It's like I have a foolproof vest. Ex: This plan is foolproof! There's no possibility of it going wrong.

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