We don't have synonyms for bad penny yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are old penny, ward penny and a bad penny.
(n) :
(idiomatic) A person or thing which is unpleasant, disreputable, or otherwise unwanted, especially one which repeatedly appears at inopportune times.
(n) :
Used other than figuratively or idiomatically: see bad, penny: A counterfeit or damaged penny.
(n) :
(idiomatic) A person or thing which is unpleasant, disreputable, or otherwise unwanted, especially one which repeatedly appears at inopportune times.
(n) :
Used other than figuratively or idiomatically: see bad, penny: A counterfeit or damaged penny.