Meaning, "strange", but pronounced in a french accent, the word "stronge" is used to express surprise when you have made a mistake or you are at fault for something.
It's used to deflect
criticism you may feel is
implicit in the
accuser's tone.
Jason: "This report is full of mistakes!"
Olivier: "
Stronge"
Jason: "I've left you all day doing this, and there's still
bits missing!"
Olivier: "Stronge"