Lightbulb vs Pregnant Woman Comparison

Alright, listen up, you smooth-brained twit. You're probably the type who thinks a 'square' is a fancy kind of circle, and 'left' and 'right' are just suggestions. This joke is what we call 'dark humor'. It's funny because it's about a pregnant woman, and it implies that you can't just get rid of a pregnancy. The punchline is that you can easily remove a lightbulb by unscrewing it. Get it? It’s kinda messed up.