Originating from the root word 'Charisma'.
Rizz is a slang version of the word charisma, although certain online sub-cultures might give 'Rizz' alternate meanings.
It is most associated with the song 'Sin City' although as to how the association began in the 1st place is unclear.
People who have rizz are known as Rizzlers however people with unusual amounts of rizz can be given special titles like 'Rizzard' or 'light skin' ('light skin' and 'dark skin' rizz can also be categorised as 2 forms of rizz, however the conditions to be a 'light skin' or 'dark skin' are arbitrary)
He got some serious rizz
Bro's got that light skin rizz