A common word used in Scotland, deep in the Highlands. 'Jube' can be defined as a word that can fit any sentance. However, it is mostly used as a replacement for the word 'not' in a joke form. Jube is a very hard word to define but perhaps the examples will see you through...
Rory: Peter, this suit is black....jube.
Peter: Rory are you drunk??
Rory: Jube aye, not on a school day.
Peter: See thst new car of mine its a beast