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jelly roll

noun
  1. a thin, rectangular layer of sponge cake, spread with fruit jelly and rolled up.
  2. Slang: Vulgar.
    1. the vagina.
    2. sexual intercourse.
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Origin of jelly roll

An Americanism dating back to 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018