"Spit and image" is an idiomatic expression that is used to describe someone who looks exactly like another person. The phrase has its origin in the idea of a child being "spat out" of a mother's mouth and being the exact replica of his father. There are several synonyms for this phrase that can be used to convey the same meaning. Some of these include "dead ringer," "double," "clone," "twin," "lookalike," "carbon copy," "mirror image," and "doppelganger." All of these words describe a person who bears a striking resemblance to someone else and can be used interchangeably with "spit and image".