What does while texting mean?

Answer 1

While means, generally, 'as' or 'during' or as an implied meaning, 'when'.

So don't drive while texting means don't drive as you (also) are texting.

Other examples of doing something 'while' include:

• Don't fall out of bed while sleeping.
• Don't yell while in church.
• Don't talk while chewing food.
• Don't interrupt while I'm watching the Olympics.
• Get me a drink of water while you're in the kitchen.