I crack myself up - A phrase used by someone who believes they're the king of co

A phrase used by someone who believes they're the king of comedy, even though their jokes are worse than a food fight in a cafeteria.

I crack myself up every time I say something stupid. It's like a daily punishment.

My mom said I crack myself up. I said, 'You're just jealous.'

I told a joke so bad, I crack myself up just thinking about it.