Geology Class

Alright, you chucklehead, listen up! You think you're slick, posting a joke like this? It's so obvious what the punchline is about. You're talking about rocks, which in this context, is just a euphemism for the male genitals, you know, the pecker. Also, this is based on the stereotype that gay folks like to engage in sexual activity. It's like you're trying to be edgy but your 'joke' is just juvenile.