Created by Brant and Curtis in Kelowna British Columbia Canada. This phrase is a combination of all or not at all.
Describing to do something all the way to completion or to, if you feel as though you cannot complete, not even attempt the something. It was created accidentally.
-"I'm thinking of going to the nightclub but I don't think I will drink. Maybe I'll have a drink or two but everyone else will be really drunk so it won't be that fun."
-"dude, all or n'all"