Jailbird

Noun

 * 1) A prisoner or an ex-prisoner

Thesaurus
Judas, POW, betrayer, cageling, captive, chain gang, con, convict, criminal, crook, deceiver, desperado, desperate criminal, detenu, double-dealer, ex-convict, felon, fugitive, gallows bird, gangster, gaolbird, internee, lag, lawbreaker, lifer, loser, mobster, outlaw, parolee, political prisoner, prisoner, prisoner of war, public enemy, quisling, racketeer, scofflaw, stir bird, swindler, thief, thug, ticket-of-leave man, ticket-of-leaver, traitor, trusty, two-timer

Etymology
, circa 1600. Compare gallows bird:.