Meaning "Snake nr 1".
Norwgian slang word for that friend who deliberately endeavors in snake-like acitvities. This phrase is applicable on people who does not show up on agreed time, or change mind at the very last minute while it is too late for the friend to turn back.
Friend1: Bro, hvorfor har du ikke bestilt kebab ennå? Jeg har allerede fått jo!
Friend2: Jeg skal ikke ha kebab allikevel. Må passe på dietten.
Friend1: Slange nr 1!
English:
Friend1: Bro, why haven't you ordered your kebab yet: I've gotten mine already.
Friend2: I think I'll skip it. Gotta watch my diet.
Friend1: Slange nr 1!