snollygoster

Etymology
19th-century American English. Possibly from, a mythical beast that preys on poultry and children; possibly from , from German +.

Largely obsolete, it briefly resurfaced in 2009 in Britain as part of a debate over MPs' expenses.

Noun

 * 1)  A shrewd person not guided by principles, especially a politician.

Translations

 * Japanese: ずる賢い人（ずるがしこいひと, zurugashikoi hito）