"Puka" refers to a hole in Hawaiian, and "okole" means "butt" or "behind." While these words are part of the Hawaiian language, they are not used together in a phrase like that.
It's possible that you might be thinking of a slang phrase or a joke, but it's important to be careful about using potentially offensive language. If you're curious about learning more about the Hawaiian language, there are many resources available online and in libraries.