Spongebob's life is impermanent, and the big intestine covers the small intestine. It was said at 1 hour and 19 minutes in the big movie. The original sentence was "well, it was fun while it was last" (well, at least I was happy for a while).

This sentence was originally used to express regret. After the film spread to Taiwan Province, China, the Taiwan Province version translated it into nonsense: life is impermanent, and the large intestine covers the small intestine. Later, it was used by lively netizens in BGM of various funny videos.

The meaning of the impermanence of life:

This terrier means that people will always experience all kinds of things in their lives. Life is like a play. No one will know when they will die, so they should keep an optimistic and tolerant attitude in life. The "large intestine wrapped in small intestine" is actually a kind of Taiwan Province snack, in which a "sausage" is clamped on the cut "glutinous rice sausage" and various seasonings are added.