This term can be used in a number of ways. Mostly to express a positive opinion of something. If you like it, its proper norris.
The phrase came around in the summer of 2006. Jimmy Westminster*, Sassy Cassie*, OJ* and co were having a lazy day at the park. OJ's sister's boyfriend's cat is called norris and OJ was talking about naming his pet plastic dinosaur Bubba Norris. Sassy misheard him and thought he had said Proper Norris. This then resulted in a chorus of Proper Norris in Jamacian/Scouse accents and Jimmy W decided that proper norris would be a good way to describe things that were good. Sassy agreed. Hence, the creation of Proper Norris.
Please refer to the myspace group, proper norris.
*Real names have not been used to protect identities.
'I look proper norris today'
'Wow, that hat is proper norris'
'Sex with your mother is proper norris'