cloak bag
Webster's Dictionary (GCIDE)
Cloak \Cloak\ (kl[=o]k; 110), n. [Of. cloque cloak (from the bell-like shape), bell, F. cloche bell; perh. of Celtic origin and the same word as E. clock. See 1st Clock.]
1.A loose outer garment, extending from the neck downwards, and commonly without sleeves. It is longer than a cape, and is worn both by men and by women. [1913 Webster]
2.That which conceals; a disguise or pretext; an excuse; a fair pretense; a mask; a cover. [1913 Webster]
No man is esteemed any ways considerable for policy who wears religion otherwise than as a cloak.— South.[1913 Webster]
Cloak bag, a bag in which a cloak or other clothes are carried; a portmanteau. --Shak. [1913 Webster]