atc_calvin Newcomer Wichita Falls, TX

Many different variations but most of the time it's one of these:

"Runway XX position and hold, back taxi approved"
"Runway XX position and hold, back taxi approved, advise when ready"
"Runway XX back taxi position and hold"
"Runway XX back taxi position and hold advise when ready"

For back taxi to another intersection for exiting to get around a closed portion of the parallel taxiway:

"Proceed on runway XX exit at taxiway XX"