Can you tell me what "Ti trip ap vale gwo trip" means?

Ti trip ap vale gwo trip → hungry
This is another way to say that you're hungry.
This expression literally means:  "The small intestine is eating up the large intestine."

Ti trip mwen ap vale gwo trip mwen.
Literally: My small intestine is eating up my large intestine.
This means: I'm hungry.

Ti trip li ap vale gwo trip li.
Literally:  His small intestine is eating up his large intestine.
This means: He's hungry.