Jank

Sometimes spelled Jankk with two k's

Adjective
Jank means someone who is really chill they are fine with basically everything that goes around them. All They want is to have a good time.

Also means easy-going or flexible with anything.

James was so jank he didn't care about the big mess his friends were making.
He is definitely jank; I'd like to hang with him.
Jim was cool with switching to the three o'clock movie because he was so jank