Here are some ways to understand it:
* Similar to "Wow!" or "Fantastic!" but with a more French and sophisticated flair.
* Often used to describe things that are visually appealing, such as a beautiful outfit or a fancy restaurant.
* Can also express excitement or surprise about something unexpected or enjoyable.
Origin:
"Ooh la la" comes from the French phrase "Oh là là", which literally translates to "Oh there there" but is used more like "Oh my!" or "Goodness me!"
The phrase became popular in English in the late 19th century, often associated with French culture and fashion. It's now a widely recognized expression used across various contexts.