It's a common term used to refer to humorous anecdotes, witty remarks, or any form of lighthearted humor.
You might hear people say:
* "Batao, koi chutkule sunao!" (Tell me, tell me a joke!)
* "Mujhe chutkule sunaane ka shauk hai." (I like telling jokes.)
* "Ye chutkule bahut mazedaar hain." (These jokes are really funny.)