fa shigadee - A ridiculous way of saying, 'for sure,' but with extra drama

A ridiculous way of saying, 'for sure,' but with extra drama. You use it when you're too dramatic to say anything else.

I'm gonna pass this test fa shigadee, even though I didn't study at all.

She said she'd come to the party fa shigadee, and she didn't even show up.

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