internet abbreviations

NVM
: Never Mind

NWOT
: New Without Tags

PMSL
: P*ssing myself laughing (a common UK expression)

POSSLQ
: Person of Opposite Sex, Sharing Living Quarters

FMV
: Fair Market Value

AMAIR
: As Much as I Recall

RTFM
: Read The F*cking Manual

BISLY
: But I Still Love You

ITSFWI
: If The Shoe Fits, Wear It!

BFF
: Best friends, forever!

WIBAMU
: Well, I'll be a Monkey's Uncle!

BTAIM
: Be That As It May

TTYL
: Talk To You Later

IIRC
: If I Recall Correctly...

AFAIK
: As Far as I Know

WRT
: With Respect To

NSFW
: Not Safe for Workplace viewing (warning that there is sexual or repulsive content)

NWT
: New With Tags

OTOH
: On the Other Hand

AFK
: Away from Keyboard

ASL
: Age/Sex/Location?

TPTB
: The Powers that Be

ROFLMAO
: Roll On Floor Laughing My A** Off

JMHO
: Just My Humble Opinion

IMHO
: In My Humble Opinion

OATUS
: On a Totally Unrelated Subject

PMFJI
: Pardon Me for Jumping In

SFSG
: So Far, So Good

TC
: Take Care!

BTHOM
: Beats the Hell Out of Me

SGTM
: Sounds Good to Me!

O RLY
: Oh, Really (sarcasm)

OP
: The Original Poster (who started this discussion thread)

WB
: Welcome Back

IDK
: I Don't Know

OOAK
: One of a Kind

MEGO
: My Eyes Glaze Over

IBTL
: In Before the Lock!

BBIAB
: Be Back in a Bit

YMMV
: Your Mileage May Vary

MTFBWY
: May the Force Be With You

NIMBY
: Not in My Back Yard

MT
: Mistell (mistaken chat message, please disregard)

p/s: not suitable for formal business correspondence