A kind of chill that is chiller than chill. It's so chill, that you should probably forget about even trying, because you'll never be that chill.
John - "Armando just smoked 2 bowls and now he's at Dobra, drinking some tea and listening to Sigur Ros."
Maura - "Wow he must be really chell."
John - "Yeah, he's the chellist guy I know."