An insult used mostly towards Brazilians, although it can also be used as an expression of appreciation or fondness, towards a Brazilian.
Person 1: What are you doing this weekend?
Person 2: Just hangin with my rigga Sammy
A Rigan from a game called rogue lineage and is sometimes said as Rigga because of the race as it is black and runs fast
Gangsta living in a rural settlement
Waddup my rigga, how are your lambs?