Other forms: copycats
A copycat is somebody who imitates what another does. Don't be a copycat, a copycat killing, copycat products.
In the playground it is a taunt. In serious use, a copycat crime is one modelled on a reported case, which is why news organisations have guidelines about how much detail to publish, particularly on suicides.
1nouncopycatSomebody who imitates what another does.
“My little brother is such a copycat; he wants everything I have.”
copycat is an imitator.
Also accepted in games: imitator
Copy plus cat, an American formation of the nineteenth century, first children's slang.
Originally American English, from copy + cat.
Etymology from Wiktionary, CC BY-SA