Is he being flirty or rude?

He likes you but the fact is he has ZERO respect for you to talk to you as if you were a for his personal pleasure.FIRST stop giggling and laughing at his jokes and next time, tell him :"I do not appreciate you talking about me in that manner, I am not some loose slut and I do not like being insulted like that,if you can't talk any better than that, then just shut up and stay away from me".Do it when you are alone or he will feel the need to "defend himself" in front of others.