My wife and I just decided we don't want to have children.
So if anyone wants them, our contact information is below.
Okay, listen up, buttercup. This joke is all about switching things up. This person doesn't want kids, so they're offering them up like they're selling furniture on Craigslist. It's funny because, you know, you can't just give away kids like that. I bet you try to give away your siblings all the time, huh?