Used as an adjective, has any of the following definitions:

1. so cool that the person seems sleepy
2. abnormally slick
3. stealthy, sly

from Johnny Rocketfingers

Unbelievibly cool

Johnny Rocketfingers

A word created for the Johnny Rocketfingers game. Used to describe something so cool, a new word had to be created.

Extremely Smooth, so smooth the person looks a bit tired.

Suppish is when somebody is so cool that they seem sleepy.

Suppish is when somebody is so cool that they seem almost sleepy.