Ezekiel Choke

The ezekiel choke comes from the old judo as “Sode guruma jime” - sleeve wheel constriction. The technique in bjj became famous as Ezekiel / Ezequiel.
This chokehold is very popular, can be sneaky and effective.

One of your arm is around the neck, you grab the other arm lapel. The other arm rotates before the neck and with a twisting motion you choke with the forarm/wrist.

you don't have to be too strong for this

There are variations also for nogi application, her you grab the bottom arm wrist or forarm

choked out

you have to aware and avoid the arm sinking in to the throat

Ezekiel choke from bottom mount position in MMA: Ezekiel choke from Alexey Oleynik