1.) A person, usually female, that is of a short stature. In addition to the height ailment, this person usually bears an attitude like that of a twat, going to unusual lengths just to be a bitch.
Studies have shown a link between twat-like females and the vertically challenged, doctors are referring to them as 'Tiny Twats'.
A Jr. High or younger aged boy who already is growing into the definition of a tool and has tool-ish qualities. He's that popular guy with not much going on for him besides sometimes his body or looks and smooth guy personality, but he'll be that buff guy who plays beer pong all day and most of the time womanizes the ladies. Also known as a tool in training.
"My Jr. High sister is crushing on this guy Joey"
"Joey? Have you seen that kid? He's a tiny tool. Definitely no good for your sister"
That kid with the Justin Bieber hair with all the little girls around him.
Tiny Dick Syndrome, abbreviated to TDS, is a genital disorder affecting males with tiny penises, males suffering from TDS inflict some of the most vile and depraved torture to their genitals in order to cope with having such a small penis.
Did you see that video of the guy putting needles into his dick, he's totallygot Tiny Dick Syndrome!