Want to express appropriate awe without resorting to "Sick!" or "Nasty" (both formerly primarily negative terms whose definitions have undergone a most peculiar process of amelioration)?
Ditch the "cool beans" and try "magnifical" on the tongue for taste!
A variation of magnific, this word is a delightfully archaic adjective best employed when one wishes to say that something is "magnificent" or "imposing." It can also be used to imply a sense of grandiose pomposity.
Try inserting magnifical into random conversations without seeming, well, a trifle magnifical!
Have you seen the new Star Wars movie?
Yeah. Magnifical, man!
Ugh . . . maybe I should start with a more visual approach:
Flying over Fargo between two cloud layers? Magnifical.