How do I deal with a manchild at work?

He is loud and never shuts up and makes everything a joke. Its really unbelievable that men over age 12 act this way... he's like over 30

I should have rephrased the question though. My boss is just as bad if not worse but he thinks he's hilarious and wants attention constantly. And he looks like he's 70 or something idek. he's old as fck though.

How do I deal with a manchild at work?
Post Opinion