[rubber stamp] n (1881) 1: a stamp of rubber for making imprints
2. a: a person who echoes or imitates others b: a body or person that approves or endorses a program or policy with little or no dissent or discussion 3 a: a stereotyped copy or expression "the usual rubber stamps of criticism --H. L. Mencken" b: a routine endorsement or approval -- rubber-stamp adj