Live Action Role Play. A LARPer is someone pretending to be something they're really not.

In the 70's and 80's LARPs were people dressing up like dungeons and dragons for Renaissance Fair. Since the dawn of YouTube and social media, LARPs are the new psyops. People LARP on YouTube as Truthers, Christians, Social Justice Warriors, and civilians.
govLARP = agents of the government pretending to be civilians. Crisis Actors = LARPers.
LARPwars = two or more LARPers in a social media pseudo-feud.

Used often in the business world, this incredibly versatile phrase can be literally translated as "fuck it."

Legacies Role Play System

LaRPS is a roleplaying system in use for monitoring and advancing a players statistics throughtout their roleplaying session. Its prime use is in Second Life, OpenSim and other virtual worlds where avatars use storytelling as part of interactive scenes, which may include combat, in a virtual community environment.

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.

Live Action Role Playing.
As everyone said, it is mostly used by attention whores. However, it can be used, and often in some parts areas, to shitpost and shill.

A Larp is an asset trader on social media who fronts as if he trades large positions, sometimes with 5-6 set ups a day, in a futile attempt to cover up the fact his sex life isn't going anywhere.

The Larp values his weight in clout more than his weight in gold.

Used predominately by the niche community of digital asset traders online on twitter, known as 'CryptoTwitter' even though they don't know anything about cryptography and instead pride themselves in their dexterity with connecting 2 candles using a line.

A fancy name for playing pretend.