Definitions by Conan

toka 

a teenage girl who is sweet and friendly on the outside, but dark and scary on the inside

Look at her acting all nice, she's such a toka

toka by Conan March 27, 2003

nagi

a person who feels they must do everything alone and on thier own terms

My sister is a loner, a typical nagi

nagi by Conan March 27, 2003

lain 

a female who has exceptional computer skills, like hacking and programming

Comes from the anime "Serial Experiments Lain"

lain by Conan March 27, 2003