Friend 2: It's obviously so I can catch jizz so it doesn't end up in my mouth after I suck some dick idiot, they call it a jizz catcher, try and keep up homo.
Friend 1: Man check out the jizz catcher that Carlos is growing!
Friend 2: Yeah man that's crazy, I hear they are really efficient though.
Friend 1: Efficient for what?
Friend 2: Catching jizz after oral sex do it doesn't get in your mouth!
Friend1: Oh ok, makes perfect sense now.