Mount"e*bank (?), n. [It. montimbanco, montambanco; montare to mount + in in, upon + banco bench. See Mount, and 4th Bank.] 1. One who mounts a bench or stage in the market or other public place, boasts of his skill in curing diseases, and vends medicines which he pretends are infallible remedies; a quack doctor.

Such is the weakness and easy credulity of men, that a mountebank . . . is preferred before an able physician.

2. Any boastful or false pretender; a charlatan; a quack.

Nothing so impossible in nature but mountebanks will undertake.

Mount"e*bank, v. t. To cheat by boasting and false pretenses; to gull. [R.] Shak.

Mount"e*bank, v. i. To play the mountebank.

• one who sells dubious medicines
        There is nothing so impossible in Nature but mountebanks will undertake; nothing so incredible but they will affirm. - John Bull
  
• one who sells by deception; a con artist; a charlatan
  
• to act as a mountebank
        Chide me no more. I'll mountebank their loves,Cog their hearts from them, and come home beloved - Coriolanus, Shakespeare