I crack myself up - A loud and proud declaration from someone who thinks they're

A loud and proud declaration from someone who thinks they're the funniest person alive, even if their jokes are as bad as a broken toilet.

I crack myself up every time I try to tell a joke. It's like watching a cat try to open a door.

My friend said I crack myself up. I said, 'You're just mean.'

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