Trying to remember an unusual crochet stitch

[Aparecium]

I'm trying to remember a crochet stitch, but I can't remember how it goes or what it's called.

You know how when you crochet (right-handed, that is), the yarn comes up over the backs of the fingers on your left hand, and you hook the yarn where it comes down in front of your index finger? I'm sure I learned a multi-step stitch where you first hook the yarn at the back, before it comes over your finger. You hook the front yarn in subsequent steps. Does anyone know this stitch?

Are you talking magic ring?

Is it a purl stitch in tunisian crochet?
Or crab stitch or loop stitch?

Yes, I think it's loop stitch. Thanks ☺️