1) a person who is sulking, with an edge towards aggresion.
2) a way of telling someone (esp. a partner) that they are being both snotty and grouchy, without being attacked by them. Generally said with bottom lip out and in a babyish voice
Snotty + Grouchy = Snouchy
1) Guy #1: "Arrgh! You just poked me in the fucking eye!"
Guy #2: "Stop being such a Snouchy Cunt."
2) Guy: "You fucking Kobold! I am SO pissed off! I'm going to go and sulk like a jerk."
Girl: "Aw, baby, are you being a wittle bit snouchy? Come here for snuggles."
Guy: "Oh, darling you really are so vomit-inducingly cute. Here, let me stop sulking and give you some oral pleasure."