Definition of "cosh" [cosh]

• A weighted weapon similar to a blackjack. (noun)
• To attack or hit with or as if with this weapon. (verb-transitive)
• Hyperbolic cosine (abbreviation)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Ham-radio records show that, during their time in Guyana, the Temple leaders ordered vast quantities of tranquilizers and Thorazine, "liquid cosh," in order to drug the members."
• "England were under the cosh, having suffered through a massive partnership between Hussey and Brad Haddin that gave Australia a first‑innings lead of 221."
• "All good things come to he who waits at the dark alley with a cosh"