低俗笑話英文

以下是一些低俗的笑話的英文表達：

1. "Why don't birds fly south for the winter?" - Because they're frozen already.

2. "Why don't frogs croak?" - Because they're hibernating.

3. "What do you call a fish with no eyes? Fsh."

請注意，這些笑話可能對某些人來說是不適當的或令人不舒服的，請確保在適當的環境下使用。