Acrônimos e Gírias Comuns de Mensagens (Além de LOL/ROFL)

Referência rápida:

Acrônimo	Significado
AFK	Away From Keyboard
BRB	Be Right Back
BTW	By The Way
CU	See You
FWIW	For What It's Worth
FYI	For Your Information
IDK	I Don't Know
IMHO	In My Humble Opinion
IRL	In Real Life
LMAO	Laughing My Ass Off
LMFAO	Laughing My F***ing Ass Off
NBD	No Big Deal
NP	No Problem
OMG	Oh My God
ROTFL	Rolling On The Floor Laughing
SRSLY	Seriously
TBD	To Be Determined
TTYL	Talk To You Later
WTF	What The F***
YW	You're Welcome

Contexto importa — alguns são informais/NSFW. Use apropriadamente.