It literally translates to "laugh," but it's used in the same way as "lol" in English, to indicate amusement or that something is funny.
Here are some other ways to say "lol" in Punjabi:
* "ਹੱਸੀ" (hassi): This means "laughter" and can be used in a similar way to "lol."
* "ਹਾਸਾ" (hasa): This is another way to say "laughter."
* "ਖੁਸ਼ੀ" (khushi): This means "joy" and could be used to express amusement, though it's not as common as "hasso."
Remember that Punjabi is a very expressive language, and people often use gestures and tone of voice to convey their meaning. So, even if you just say "hasso," the way you say it will make it clear that you're finding something funny.