Here's a breakdown:
* Wala pako means "I'm not yet"
* Nag preggy is a shortened way of saying "nagpupregny" which means "pregnant"
* ka oi is an informal way of saying "you know" or "right?"
The phrase is typically used in a playful or casual way to address a question or assumption about pregnancy.
For example:
* Friend: "Uy, grabe ka na ka itom! Nag preggy ka na ba?" (Hey, you're so dark! Are you pregnant already?)
* You: "Wala pako nag preggy ka oi. Haha!" (I'm not pregnant yet, you know. Haha!)
It's important to note that this phrase is specific to Cebuano, a language spoken in the Philippines.