impostor

A well-known Latin word meaning ‘deceiver’ and ‘fraudster,’ or somebody who impersonates other people. (https://sjp.pwn.pl/sjp/impostor;2561338.html). It appears in both Polish and English. It entered youth slang due to the popularity of the game “Among Us,” where one of the players takes on this particular role. The impostor’s task is to sabotage the game and eliminate crew members. Discovering the impostor guarantees a win (zob. https://among-us.fandom.com/pl/wiki/Impostor).

Examples of usage:
[own translation]

1. Aśka finally left. Impostor eliminated.* /overheard/
2. – Impostor eliminated.
– So, pause.. /https://www.youtube.com/watch?v=bTqfGLxm3Gw/.