Definition of "bareback"

bareback

/ˈbɛəbæk/

adjective
not comparable
1. Without a saddle.
2. Without a condom.
3. (dated) Without a shirt; shirtless.
  Quotations
  ‘Bareback’ bathing for men, heretofore taboo in Atlantic City, broke down the last line of official resistance today and will be allowed this Summer.
  1937 March 30, Bareback Bathing Ban Off, The New York Times
adverb
not comparable
1. Without a saddle.
2. (slang) Without a condom.
verb
third-person singular simple present barebacks, present participle barebacking, simple past and past participle barebacked
1. (intransitive, slang) To engage in penetrative sex without a condom.
2. (transitive, slang) To sexually penetrate without a condom.
noun
plural barebacks
1. A bird, raised for meat, that lacks feathers, seen as an undesirable trait.
  Quotations
  Buyers discount many broiler flocks by from one to five cents a pound due to barebacks, but the loss to the industry does not end there. Barebacked broilers slow down the pickers in the dressing plants which results in a loss in labor.
  1950, Poultry Digest, volume 9, page 91