Combination of whoa and amazing. When something surprises you at first. And then you sit down and admire it’s amazing character.
WHOAAAAMAZING! Look at all those fireflies! I have never seen such a sight.
whoa, amazing, incredible, wow, interjection, surprise, delight
BrWe: fireflies! i love fireflies http://www.thisiscolossal.com/2011/12/stunning-time-lapse-photographs-of-gold-fireflies-in-japan/
Matt: the fireflies are cool!
Matt: OH! That needs to be in urbandictionary