stiff as a poker

*stiff as a poker

rigid and inflexible; stiff and awkward. (Usually used to describe people. *Also: as ~.) This guy's dead. He's cold and as stiff as a poker. John is not a very good dancer; he's stiff as a poker.
See also: poker, stiff
References in classic literature ?
Come here, Amy, and do the fainting scene, for you are as stiff as a poker in that.