A person, (commonly a male teenager) with no experience in handling boobs (tits).
Commonly uses excuses such as: the tits were slippery"
No. 1: Dude, I just touched her tits!
No. 2: I saw that, and you allmost wrecked her rack!
No. 1: No, I didn't!
No. 2: Yes you did bro, you're a Titsaster!