thrin
Young women, usually overweight, that are so egocetnric and self-absorbed that they make up cute little words to describe themselves and their so-called "friendship".
Those three fatties we met from Wisconsin seemed cool at first, but then they turned out to be total thrins.
Thrin
A group of three friends who are very close, like sisters. Like twins, only three.
Maddy, Rikki, and Miranda were better known as "The Thrins" at school.