To be of a wise mindset. That which is indeed "Propa" is notably correct and unsilly. Also Fancy.
First coined by the gamer Propagansus in 2006, it has become part of the catchphrase for all members in Propa Tech Industries. "In Propa we trust." Its country of origin is the United States of America, more specifically in the Southeast region of Texas, where it has spread into neighboring states.
"The way you won that last match was very propa"
"Billy, there is no need to be so propa. It's only a game."