unloose

a thing, person, place or idea which is very "cool" "fun" or otherwise awesome; tight; not loose.

Mr. Johnson: Eddie, did you manage to turn in your essay to my inbox?

Eddie: No, I didn't have time to write it.

Mr. Johnson: That's not very good Eddie. Okay... Kurt, did you turn it in?

Kurt: Yeah, just a minute ago.

Mr. Johnson: Great! That is unloose, Kurt.