clam up

Slang Dictionary

clam definition


  1. n.
    a dollar. (Underworld.) : You got a couple of clams I can bum for a little bottle?
  2. n.
    a tight-lipped person. : Suddenly, she became a clam and wouldn't talk anymore.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
Cite This Source
Slang Dictionary

clam up definition


  1. in.
    to get quiet. (See also dummy up.) : The minute they got him inside the cop-shop, he clammed up.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition.
Copyright 2007. Published by McGraw-Hill Education.
Cite This Source
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