textra-terrestrial
Someone who is an 'alien' to texting, usually older and technologically impaired.
My grandma is such a textra-terrestrial.
Dude A: Did you get ahold of joe?
Dude B: No, he just barely got a phone last week and he's a total textra-terrestrial.
Dude A: Did you get ahold of joe?
Dude B: No, he just barely got a phone last week and he's a total textra-terrestrial.