The FBI is just as confused about the Internet as your parents are.

MuckRock released an 83-page FBI document that attempts to define thousands of Internet acronyms. The document is called "Twitter Shorthand" and has upwards 3,000 acronyms, along with a definition. Like this: LBH is "let's be honest" or "loser back home."

The document was uploaded on MuckRock in a PDF version but it can't be read because of its low quality, so here are some of the best ones:

BEF = best enemies forever/best e-mail friend

BL = belly laughing/bottom line/bad luck

BMT = before my time/basic military training

BRB = be right back

BTW = by the way

DOS = dozing off soon/dad over shoulder/disk operating system

HOH = head over heels/hard of hearing

IFF = if and only if/Internet friends forever/identification: friend or foe

JC = Jesus Christ/Just curious/just chilling

JFK = just for kicks/JF Kennedy/JFK Airport

KIA = killed in action/know it all

LBH = let's be honest/loser back home

LI = LinkedIn/laughing inside

LOL = laugh(ing) out loud

LV = Louis Vuitton/Las Vegas/level

NSFV = not safe for viewing/vegetarians/vegans

OW = other woman/oh, well

PST = please stand tall/pacific standard time

PTB = powers that be/pass the buck/please text back

SD = sweet dreams/secure digital/San Diego

SW = so what?/Star Wars/street worker

TTYL = talk to you later

WMP = with much pleasure/Windows media player

[via HuffPost]