Why can't you tell jokes at the seaside?

1, because it will cause the sea to laugh (whistle).

2. A cold joke refers to the fact that the joke itself can't achieve the funny purpose because of boring, homophonic words, translation, or omitting the theme, different logic, judgment or special content, or because of the mood or expression of the performer, but it is difficult to make people laugh and become a kind of silence. However, it doesn't mean that the joke itself is boring, but it is also a manifestation of humor. Nowadays, most people laugh when they hear cold jokes, and sometimes they make a gesture of hugging their arms: "It's so cold!" " Or words and expressions related to cold semantics, such as chills, temperature, air conditioning or hot weather.