A single clay pigeon.
clay pigeon definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a brittle, saucerlike disk as of baked clay, tossed into the air from a trap as a target in skeet and trapshooting
clay pigeon definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A clay disk thrown as a flying target for skeet and trapshooting. Also called bird.
clay pigeon - Phrases/Idioms
A person easily duped or taken advantage of, as in You're a clay pigeon for all of those telephone fund-raisers. The term alludes to the clay pigeon of trapshooting, which replaced the use of live birds in this sport in the 1860s. Its transfer to figurative use in the first half of the 1900s probably is explained by the much older slang use of pigeon for “dupe.” Also see fall guy.