someone who doesn't pass the ball
someone who chooses showing off some difficult crap rather than doing the right thing by giving the ball up
someone who hurts the team (no no not Kobe Bryant's case where he's benefitting the team)
Steve Francis is a ballhog
Stephon Marbury is a ballhog
Allen Iverson can be a ballhog, but he helps his team a lot by ballhogging
Kobe Bryant can be a ballhog as well, but he also helps his team a lot by ballhogging
In basketball, one who never passes the ball to other players and just tries to shoot for himself.
Bob: Mike is such a ballhog; whenever he gets the ball, he just shoots it without even trying to pass it to one of us!
Joe: I know right...