The FBI has a list detailing about 2,800 of the many different abbreviations and acronyms used on social media. In addition to familiar terms like LOL or BRB, the 83-page lexicon contains more inexplicable entries like YTP (YouTube Poop) and WYLASOMWTC (Would you like a saucer of milk with that comment?). There are also incriminating shorthands such as GAC (Guilty as Charged) and IITYWIMIWHTKY (If I tell you what it means, I will have to kill you). While comprehensive, the compilation appears somewhat dated in places. A troll, for example, is defined as a deliberately provocative "message board" user.

According to the introduction preceding each page, the glossary of Internet terms was put together by the agency's Intelligence Research Support Unit and is adorably described as useful for "keeping up" with children or grandchildren. The list was published after a Freedom of Information request was filed through MuckRock, an organization that assists the public in acquiring data from the federal government.