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bareback

American  
[bair-bak] / ˈbɛərˌbæk /
Or barebacked

adverb

  1. with the back of a horse, burro, etc., bare; bear; without a saddle.

    to ride bareback; a bareback rider.
bareback British  
/ ˈbɛəˌbæk /

adjective

  1. (of horse-riding) without a saddle

  2. slang (of sex) without a condom

"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

verb

  1. (intr) to practise unprotected sex

"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

Etymology

Origin of bareback

First recorded in 1555–65; bare 1 + back 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.