What do you expect when you get out of a bar?
Your mom naked LOLOLOLOL.
What do you expect when you get out of a bar?
Your mom naked LOLOLOLOL.
Alright, listen up, buttercup. The joke is that instead of something normal happening when you leave a bar, the punchline is "your mom naked." It's supposed to be funny because it's unexpected and kinda shocking. Plus, it's your mom! You probably have one. I bet yours still makes mac and cheese for you.