from The American Heritage® Dictionary of the English Language, 4th Edition
- n. One that closely imitates or mimics another.
- intransitive v. To act as an imitator or mimic.
- transitive v. To imitate closely; mimic.
- adj. Closely imitating or following another: a copycat version of a successful product; a copycat crime.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. One who imitates others' work without adding ingenuity.
- adj. Imitative; unoriginal.
- v. To act as a copycat; to copy in a shameless or derivative way
from the GNU version of the Collaborative International Dictionary of English
- n. someone who copies the words or behavior of another.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. someone who copies the words or behavior of another
From copy + cat ("person"). It has been in use since at least 1896, in Sarah Orne Jewett's The Country of the Pointed Firs. (Wiktionary)