1.somebody, especially a man, who is a spokesperson in a TV or radio commercial
2.somebody, especially a man, who is a very persuasive salesperson or advertiser
3.somebody, especially a man, who sells small or cheap items, especially on the streets or at carnivals
1.A pair of twentysomething staffers craft most of the promotional tweets in the voice of the celebrity pitchmen.
20多名员工以明星代言人的口吻策划了大多数的微博宣传。