1. An exclamation of surprise and disbelief.
2. A significantly more homosexual version of "Oh snap!"
Justin: "I heard Pepper slept on yet another guy's bed."
Max: "Snaparoonie!"
Justin: "Word."
“The snappiest, dopiest, cooliest thing ever!
OOOh Snaparoonie!! That's the snappiest, dopiest, cooliest thing ever!!