Did you hear about the band Manhole? I hear they're a metal cover.
Manhole Band
Explanation
Explain Bear
Alright, listen up, nimrod! This joke is all about wordplay. The band is named "Manhole," right? And they play metal music. But "metal cover" sounds like "manhole cover," which is a metal lid you see on the street! Get it now? Or do I need to draw you a picture?