What is Twd?
1.
Texting while driving. Using any mobile device's non-phone capabilities while driving a vehicle, especially those that require a lot of input and concentration, such as sending text messages.
Dave was TWD and nearly ran the car off the road when he missed the bend in the road.
See
2.
TWD has become synonymous with "inactive server" or "server is down now." Often the term is used to describe a whole host of computer related failures.
"My computer totally went TWD on me today. Now I will have to get a new one."
or
"Dear Norton, Do you have any TWD prevention software I can purchase?"