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2.
A form of agreeing, liking, and or saying something is cool. commonly used by waste brown people.
person 1: i just got a pack of cigarettes.

person 2: thats proper still.
by odd wolf 123 May 17, 2011
 
1.
When something is amazing or done exceptionally well while ending the moment with a emphasized point.
Thats proper still.
by Sugar69 November 23, 2010