fa shigadee - It's like 'for sure,' but with a side of arrogance. You use

It's like 'for sure,' but with a side of arrogance. You use it when you're so confident you think everyone else is stupid.

I'm gonna pass this test fa shigadee, even though I studied for like five minutes.

He said he'd beat me up fa shigadee, and now I'm scared.

I'm gonna eat that whole pizza fa shigadee, even though I'm already full.