dick of all trades

Someone incompetent in all manner of work.

He is incompetent in everything he does, truly a dick of all trades.

Dick of all trades

A person who is incompetent in many different types of work.

He is utterly incompetent at everything he does, truly a dick of all trades.

I'm all dick and bones

Means, that the guy is slim with a big dong, as in he's hardly fat!

You're slim aren't you?

Yeah, I'm all dick and bones.