jumpsuit /ˈd͡ʒʌmpˌsut/ noun3 •A one-piece item of clothing originally used by parachutists.Hey baby, baby, baby he's a-lookin' so cute / Sneak around-round-round in a blue jumpsuit — 1977 •A similar item of clothing used for outdoor sports such as skiing. •A similar item of clothing used as a prison uniform. formsjumpsuits