// 

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.

Goodnight JJ. //
// you babe.
//
// so much.
// Quack!

// by Payson's Dad February 5, 2009

// 

//, and tw // are often used to denote a trigger warning and that the post with this contains disturbing content. Every time it is used it is proceeded by the topic that can cause such discomfort.
On Twitter and other platforms this is used when talking about a traumatic experiences or otherwise undesirable mentions.

"tw // grooming
This Content Creator texted me to do things for them and things got really weird after that. They started to say inappropriate things to me."

// by MagicPlantain March 21, 2021

// 

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.

common roleplaying board titles, particularly on Neopets:

{onexone}{//}
// highschool
{modern fantasy}{//}{||}

// by tarampaiel September 23, 2008

// 

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

Steven and Alden like playing around in Steven's bed after hours. // Kind of playing.

// by Ya-ya. June 11, 2006

// 

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

Bill: "I found $50 on the ground"
Sam: "//"

// by harddrugs June 30, 2011

// 

//, 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.

AIM kiddie: "DOOD, I TTLY LURVE TEH HOFF!!!111eleventy"
Jaded designer type: "//Yeah, i can't get enough of that hackneyed internet obsession either."

// by haus53 May 2, 2006

// 

Symbol standing for parallel.

The roads are // to each other.

// by Vince Barbuto February 16, 2005