Used to just mean Live Action Role Playing, now it's also used figuratively and derogatorily in the context of online political discussion to describe people or activities involving absurd adherence to ideals, inflammatory messages, and elaborate outfits or accessories to deliver a sense of association with political groups often just for the social and visual experience of it all or due to a sanitized misunderstanding of activism in general born of the information age. Pairs good with gatekeeping.

LARPing, which stands for Live-Action Role-Playing, means exactly that, Live-Action Role-Playing. LARPS differ in many ways but usually they consist of hanging out in a "pub" or "tavern", or just swinging fake weapons at each other all day.

LARP stands for Live Action Roleplay. Originally intended for use for Roleplaying games that are played outside with other people, pretending to be their characters.
Can be used as a metaphor for people pretending to be something they are not, especially online. Examples are Wehraboos, people obsessed with the Wehrmacht, or Crusade-memers.

LARPing is short for "Live Action Role-Playing". A live action role-playing game is a form of role-playing game where the participants physically act out their characters' actions. The players pursue their characters' goals within a fictional setting represented by the real world, while interacting with one another in character. The outcome of player actions may be mediated by game rules, or determined by consensus between players.

The first LARPs were run in the late 1970s, inspired by role-playing games and genre fiction. The activity gained international popularity during the 1980s, and has diversified into wide variety of styles. Play may be very game-like, or may be more concerned with dramatic or artistic expression. The fictional genres used vary greatly, from realistic modern or historical settings to fantastic or futuristic eras. Production values are sometimes minimal, but can involve elaborate venues and costumes. LARPs range in size from small private events lasting a few hours to huge public events with thousands of players lasting for several days.

LARPing basically stands for playing Life-Action-Role-Play.

It is a game usually played in the forest where you use weapons made out of foam and PVC.
In LARP you usually go back to the dark ages and you give yourself and others a role on the battle field.
That is in short what LARPing is and what it stands for.

LARP means "LIVE ACTION ROLEPLAY".
However, in an all time low interview found on buzznet:
alltimelow.buzznet.com (LARPing video)
Jack and Alex turn it into a bad word xD
I think it should be a new slang word for jizz xP

Teehee ;3
So now instead of Jizz or Cum it is LARP ^_^

When someone is pretending to be something they’re not. Can involve lying on social media/internet or lying in real life. Often used in a derogatory sense.

Derived from the original meaning of LARP, Live Action Role Play. When you say that someone is larping and you’re not talking about the literal game, you are saying that they are role-playing in their actual real life. Pretending to be rich, pretending to know about a topic, pretending to have a certain lifestyle, etc.

Larping (or LARPing) is short for "Live Action Role-Playing". A live action role-playing game is a form of role-playing game where the participants physically act out their characters' actions. The players pursue their characters' goals within a fictional setting represented by the real world, while interacting with one another in character. The outcome of player actions may be mediated by game rules, or determined by consensus between players.

The first LARPs were run in the late 1970s, inspired by role-playing games and genre fiction. The activity gained international popularity during the 1980s, and has diversified into wide variety of styles. Play may be very game-like, or may be more concerned with dramatic or artistic expression. The fictional genres used vary greatly, from realistic modern or historical settings to fantastic or futuristic eras. Production values are sometimes minimal, but can involve elaborate venues and costumes. LARPs range in size from small private events lasting a few hours to huge public events with thousands of players lasting for several days.

Live Action Role Play

a type of game where a group of people wear costumes representing a character they create to participate in an agreed fantasy world. Uses foam sticks as swords, foam balls as magic and other props to create the games world.