Nuts and Bolts Eater

Alright, listen up, smarty pants! This joke is all about wordplay. See, you got yer regular "nuts," like acorns and stuff, and yer "nuts and bolts," which are metal things. So, the punchline makes you think of a squirrel that's late for an appointment but also eats metal. It's funny 'cause it's unexpected and kinda dumb, just like you!