a dead ringer for somebody

dead ringer for (someone or something)

A person or thing that bears a strong resemblance to someone or something else. Susie was such a dead ringer for Kate Winslet that sometimes people would ask her for her autograph. The budget company is known for producing accessories that look like dead ringers for those made by the top brands.
See also: dead, for, ringer
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

a dead ˈringer for somebody

(informal) a person who looks extremely like somebody else: She’s a dead ringer for her mother.A ringer was a person or thing that pretended to be another person or thing. In horse racing for example, a ringer was a horse that was substituted for another in order to cheat in a race.
See also: dead, for, ringer, somebody
Farlex Partner Idioms Dictionary © Farlex 2017
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