There are a few possibilities:
* "Boulawee": This could be a misspelling of "bouillabaisse", a French fish stew.
* "Boo-la-la": This is a French expression meaning "great" or "fantastic", which could be a playful or exaggerated way of describing something.
* "Boo-hoo": This is an English expression for crying or expressing sadness, but it doesn't have a specific Cajun connection.
Without more context, it's hard to determine the exact meaning of "boolawee". If you have more information about where you heard this word, it might be easier to identify the correct spelling and meaning.