四月鱼是愚人节众多恶作剧之一。它源自法语的“poisson d’avril”，意思是“四月的鱼”。人们常会把纸鱼偷偷粘在别人的背上作为玩笑，因为鱼象征年轻稚嫩，容易上当受骗。而背上被粘了鱼的人，就被认为是轻信好骗的傻瓜。

In France, the day is known as poisson d’avril, or “April Fish,” and has long had a fish-themed pranking tradition. In modern ...

These days, depending on your location, it could be marked with a fish secretly pinned to ... were the unsuspecting recipient of a practical joke. Here are some thing to know about April Fools ...