Game ruiner

[Tariq Zaki]

A party pooper of sorts, specific to the gaming genre: someone that willfully or intentionally would go through great lengths to interfere in the normally fun dynamics - that are the norm when people get together to play games - in a disturbing manner, without remorse (subjective) or shame (ditto).
People described as [Game ruiner] have been known to display further questionable social habits, such as glaring, ogling, [gawking], [rubbernecking], gloating and even resorting to bitch-slapping when confronted with their behavior.