Top definition
An ethnically, as well as religiously, non-Jewish female who either converts to Judaism or immigrates to Israel in order to prosper socially, as well as economically, by way of social networking and unscrupulous political behavior.

For the male counterpart of this definition, please see “Brother Ishmael”.
The woman certainly played the part, she had the yamika and began speaking yiddish. Some say "if it walks like a duck and it talks like a duck, then" you know. But still I just couldn't shake the feeling that this social climber was a Sister Sarah, an imposter.
by Robert Vincent Piccirillo November 28, 2006
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