It's not short for anything, mind. Just Drift.

[ The corners of Drift's eyes crinkle when he smiles with the sort of expression people have after making a bad joke- Cautious and a little embarrassed. Yeah, this guy one hundred percent suspected him of not being human. It was going to come out eventually, but really he just looked like this because it was easier to get around. ]

A planet called, and now wait for it because I'm aware how on the nose this sounds, Cybertron.