Bukač, vikač, buntovnik, larmadžija (tur.)
Someone who stands in front of a show (as at a carnival) and gives a loud colorful sales talk to potential customers.
ETYM Cf. French crieur. Related to Cry.
A shouter who advertises the goods they sell.
Someone who communicates vocally in a very loud voice; SYN. shouter, yeller.