A scrub who doesn't know the difference between "tad bit" and "tid bit." Also, tibblits are obsessed with people with Asperger's.
Girl: See that guy Kai over there? He's keeps trying to dry hump all the people with asperger's!!
Boy: WOAH. That guy is totally a tibblit. Wtf.
Girl: I know, he even tried to massage this guy named Sam's butt! True tibblit right theree