A guy that will chase pussy down to the ends of the earth if he has to. To some degree a cock blocker! If he wants it bad enough, he'll sell his soul, jeopardize friendships, in the mindless pursuit of sex that usually ends with him being unsatisfied and back on the hunt for the next victim.
Your boy is such a cock-hound. He tried to holla at my girl, but when she rejected him, he tried to get with our other best friend that same night. She's jailbait and he didn't care.