To express the gaiety of the person addressed and to also express disappointment towards certain events that has or is being initiated. Or simply say that someone suck.
When losing during a friendly game of pool, or simply billiards, the appropriate phrase to say to your opponent is "You Suck Gay". The word is also appropriate to use when losing at any type of event or activity, but particularly in billiards.
The fucktard going by the name "metal sucks and is gay" is a rap-obsessed halfwit who believes that all metal is emo, despite the blatant fact that emo is punk. He has many other logical failings, and believes that anything he hates is automatically "gay". The unnecessary use of the word "gay" only proves that he is in fact a repressed homosexual.
"metal sucks and is gay" is a disgrace to all homosexuals who hate metal. LGBT metal haters, rise up and fight this wannabe!