An expression of celebration after an absolutely sick play in a video game, sport, or just a generally sick moment in real life. The term is said enthusiastically, and should always be before an exclamation mark. It is very effective when said after a sick 100m snipe as well.
Fonz: APOINGUS! HA! You suck man, go look at some stretch marks doofus!
Bavid: Cmon man, you know I can't beat someone as legendary as you. By the way, you and toucan's ex would make a great couple.
I'm aping (Aaron) McGruder's style, so everyone will assume he's still on the job. For example, I read that he likes to use "N" words, so I'm using a bunch myself.
"Ninjas noodled nine nefarious neocons near Norway."