O! Fassé - French for oh face, used when you get a big one and you're t

French for oh face, used when you get a big one and you're trying to be cool. It's like you're saying you're fine but you're not.

I had to say O! Fassé like I was fine. But I was dying inside.

He walked in and I had to hold it. O! Fassé, I'm being cool.

I had to fake a smile and say O! Fassé like I was cool.