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slang The neck. The phrase comes from rhyming slang in which "Gregory Peck" rhymes with "neck." (Gregory Peck was a US actor in the mid-20th century.) Primarily heard in UK. Here, take a scarf! It's too cold to go out with your Gregory Peck bare.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.