shammer (noun) quack: person who pretends to be an expert
Sinonime: actor,
bum*, bunco artist,
charlatan,
cheat, con artist,
counterfeit, counterfeiter,
fake, faker, flimflammer, four-flusher,
fraud, hoser, humbug, impostor, mountebank,
phony, playactor, pretender,
pseudo*, put-on, quacksalver,
sham, shammer, shark,
sharp*, simulator, slicker,
whip*