Giannis is the name given to people born in Greek who are later destined to come out as gay. Giannis gets no bitches and does not know how to socially interact with people. People named Giannis are also bad at Rainbow Six: Siege.
Person 1: "Hey have you seen Giannis?"
Person 2: "He's either sitting alone at a Gay Bar or going 0-7 in R6 Ranked."