I just saw a sentence in my fortune telling. What is a joke?

"Duanzi" is an artistic term in cross talk, which refers to a paragraph or an artistic content in cross talk works. With the frequent use of the word "Duan Zi", its connotation has quietly changed, and people unconsciously and subjectively integrated it into some unique connotations. Now this word is not only the original meaning, but also the common name of vocal music programs or literary works. So some "yellow jokes", "yellow jokes", "cold jokes" (connotation jokes) and "black jokes" (horror stories) also appear in BLACKPINK with the expansion of the meaning of the word, but ironically, the cradle of "jokes"-"art" is included in "jokes" (such as "jokes"