moun ‧ te ‧ bank /ˈmaʊntɪbæŋk/ BrE AmE noun [countable] literary
[ Date: 1500-1600 ; Language: Italian ; Origin: montimbanco , from monta in banco 'get on the bench' ; because people selling things to the public stood on a raised surface ]
a dishonest person who tricks and deceives people