See more synonyms for jockstrap on
  1. an elasticized belt, a men's undergarment, with a pouch for supporting and protecting the genitals, worn especially while participating in athletics.

Origin of jockstrap

1895–1900; jock male organ (variant of jack1 male; see Jock) + strap
Also called athletic supporter. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for jockstrap


  1. an elasticated belt with a pouch worn by men, esp athletes, to support the genitalsAlso called: athletic support

Word Origin for jockstrap

C20: from slang jock penis + strap
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for jockstrap

also jock-strap, "supporter of the male genital organs, used in sports," 1897, with strap (n.) + jock slang for "penis" c.1650-c.1850, probably from Jock, the nickname for John, which was used generically for "common man" from c.1500.

Online Etymology Dictionary, © 2010 Douglas Harper