3. Imitate, copy, duplicate, reproduce all mean to follow or try to follow an example or pattern. Imitate is the general word for the idea: to imitate someone's handwriting, behavior. To copy is to make a fairly exact imitation of an original creation: to copy a sentence, a dress, a picture. To duplicate is to produce something that exactly resembles or corresponds to something else; both may be originals: to duplicate the terms of two contracts. To reproduce is to make a likeness or reconstruction of an original: to reproduce a 16th-century theater.

Did you mean irritating?