Drive texting 

Drive texting is the act of sending a text message while driving.

I'm sorry officer; I don't know what happened. I was drive texting, and the homeless dude just showed up on my windshield.

Drive texting by dasmall1 February 25, 2009

drive-by texting 

A text message sent by someone to try to stir things up, but when a response is made, no further messages are sent.
Similar to a drive-by shooting because after the assailant has disappeared, the victim is left riled up and frustrated.

Girl (out of the blue): "Haven't missed a beat have you?"

Guy: "What makes you say that?"

An hour passes with no response

Guy: "Drive-by texting?"

drive-by texting by notbait February 16, 2010