D defs.my
Entry 1 sense Webster, 1913

jockey shorts

/(jŏk"ē shôrts)/ · jock·ey shorts · IPA
01 n. pl. A type of men's underpants without legs, fitting tightly and held by an elastic waistband; also called briefs. Originally a tradename, the…
  1. 1.
    A type of men's underpants without legs, fitting tightly and held by an elastic waistband; also called briefs. Originally a tradename, the term has become common for that type of underpants. Also: briefs