A name that describes awesome males in Africa. Most people would call a male this if they really think the guy is cool and is everything a man should be. Normally the word Siya has a connotation of idolisation, close to words like Jedi,Superman and Hero
(... in a pub a beer fall and this guy catches 0.0001 seconds before hitting the ground)
Guy:"ahhh, my beer"
Guy2:"Here it is man!"
Guy:"You are the sh*t...thanks Siya guy."