Is a persian word .
Jaghi is a term used to describe someone who masturbatesfrequently. In can be used as an insult or a term to refer to one's friends (similar to calling a friend a(n) 'asshole,' 'prick,' or 'dick.'
Someone who's either really keen and/or plays basketball who has a temper with other players and can been seen to be getting aggressive in both physical actions and through what they say towards other players on the court.