Get Some Skills. Usually said in an aggressive manner towards a n00b or a newbie. Told to inform them of their behaviour or even blatant lack of skills.
<suckyplayer>: hAHAj00 dye 2 many tymes!!
<aggressiveplayer>: gss!
GSS is an acronym for golden shower syndrome; this is a syndrome commonly found in Asian women. It occurs during sexual intercourse when your female partner loses sense of her bladder valve. As a result of this, urine will be discharged through the urethra onto her male partner, thereby owning him.