facelock

Noun

facelock (plural facelocks)

1. A type of headlock in which the opponent's head is clamped around the face.
   • He raised his right arm and clamped a facelock on his opponent.1995, Gordon D. Shirreffs, The Ghost Dancers, →ISBN, page 146
   • I stepped to the side like the world's worst matador and grabbed him in a front facelock. It was the only shoot hold I knew, one that harkened back to my days bouncing at Malarkey's in Calgary.2011, Chris Jericho, Undisputed: How to Become World Champion in 1,372 Easy Steps, →ISBN
2. A security protocol based on the attempted user's recognition of faces known to the account owner.
   • This contrast can be used as the basis for a personalised ‘facelock’, in which authentication succeeds or fails based on image-invariant recognition of faces that are familiar to the account holder.2014 June 24, Rob Jenkins, Jane L. McLachlan, Karen Renaud, “Facelock: familiarity-based graphical authentication”, in PeerJ