It's
Gade yon koze! or contracted
Gad 'on koze! literally meaning
look at a thing (
look at this thing)
It's an interjection (indicating a range of emotion from mild surprise to disbelief or impatience), that can mean
Oh dear look at this!, or
Would you look at this! or
What is this!
Sometimes we say
Tande yon koze! or
Tand'on koze! too which means almost the same as
Gad' on koze and it literally say
Listen to this thing!
Examples:
1. Gad on koze! Apa ou la toujou?
What is this! How come you're still here?
2. Gad on koze! Poukisa w'ap anniye m konsa?
What is this! Why are you bugging me?
3. Tand 'on koze! Ti pitit la fèk sot joure m.
Would you listen to this! The kid just cursed at me.
Haitian Creole ↔ English Reference, Look up Haitian Creole and English Words