Guns and Gum

Alright, listen up, buttercup. The joke is that both guns and gum make people wanna be your pal when you show 'em off. It's funny because guns are usually about power and danger, and gum is just, well, gum. The punchline is about how people will pretend to like you if you have something they want (or are scared of). And by the way, your brain probably has the same amount of wrinkles as my butt.