a garment similar to a jacket that is used to bind the arms tightly against the body as a means of restraining a violent person
anything immaterial that severely hinders or confines; "they defected because Russian dance was in a straitjacket"; "the government is operating in an economic straitjacket"
with discretion; prudently and with wise self-restraint; "I sent for the sergeant of the platoon both men were in and asked him to try to find out discreetly what lay behind this"