Forbidden Licks

Alright, you big ol' dum-dum, listen up! This joke is simple, even for your small brain. First, think about a 9V battery. People sometimes touch the two terminals with their tongue to test if it's got juice – you get a little zap! It's kinda gross, but people do it. Now, the second part: a butthole. It's a gross thing too, right? And society definitely says, 'Don't lick that!' But the joke is saying, just like with the battery, despite knowing it's weird or wrong, some people still get the urge to do it anyway. It's about that naughty little voice in your head, you big ol' simpleton!