f'pants
A fancy word for someone who thinks they're the best at everything. It can also mean something that's really good, but it's still annoying because it's trying too hard.
That guy is a f'pants. He thinks he's the king of the world just because he got an A on a test.
That concert was f'pants. I paid $100 just to hear someone sing.
She said my math was f'pants. I told her to go to bed.