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A hold in wrestling and martial arts in which the opponent's arm is immobilized, often by flexing or extending the opponent's elbow or shoulder joint.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
a hold in which an opponent's arm is gripped in such a manner that it cannot be moved. This is often used with the intention of forcing the opponent into submission.
to grip a person's arm in such a manner that it cannot be moved
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014