Means "BoyxBoy" or "GirlxGirl" in usual RPGs. Very cute usually, but they do grow on you.

The symbol "//" is used mostly in roleplaying forums to denote "slash," or roleplays containing male/male or female/female romantic pairings. In contrast, "straight" romantic roleplays are often denoted with two upright lines (||). The use of "//" was popularized on the Neopets roleplaying board, where the use of the word "slash" and other synonyms (shounen-ai, yaoi, etc.) have been banned. However, as Neopets staff members have apparently begun to catch on to the meaning of "//," shutting down boards that advertise it, it is likely that this term, too, will soon be replaced by something more obscure.

The two slash marks // when used in texting,short communications like Twitter, Facebook updates, and pictures represents love or the love of someone or something. Using the two slash marks // is the same as saying, I love you. The two slash marks can be used in conjuction with modifiers to create short sentences and greater explanations of the love felt.

emoticon that represents a man's erection while simultaneously indicating approval or enjoyment of the topic of conversation.

//, used in front of a statement containing sarcasm in email/IM/message boards, because it's hard to convey sarcasm without face-to-face contact or smilies.
First coined on newstoday, which incidentally has a high percentage of jaded designer types and no emoticons.

Symbol standing for parallel.