Definition of armlocks:
(n) :
A wrestling move in which the opponent's arm is held immobile.
(n) :
Any of several distinct attacks against an opponent’s arm in martial arts.
(n) :
A fighting hold in which the arm is used to immobilise an opponent.
(v) :
(transitive) To hold in an armlock.
(n) :
(figuratively, by extension) Power to control or heavily influence something or someone.