Katiexcore
A person, thing, or action that is said to be cool, fun, good, amazing, and so forth. Generally it can be used to describe anything in a posative way, as an adjective or an adverb.
Dude, your brother is totally katiexcore at dancing.
That party was so katiexcore. Too bad it got busted by the cops so early.
That party was so katiexcore. Too bad it got busted by the cops so early.