Straitjacket
Or strait-jacket or strait jacket.
<B>1.</B> A garment shaped like a jacket with long sleeves the ends of which can be tied behind the back to restrain a violently disturbed person, as in a psychiatric in-patient unit, so that the person does not injure themselves or anyone else.
(The straitjacket has also seen use in prisons, escapology, and sexual bondage.) <B>2.</B> By extension, anything that is constricting, restricting, very limiting, confining.
Sometimes spelled straightjacket, straight-jacket, or straight jacket.
However, strait means narrow or confined so that straitjacket is preferable.
Also called a camisole