The term ANNOYING KID can be described by four three-letter words and one four-letter word. The first word is IMP, which is an abbreviation for 'IMPUDENT' or 'IMPERTINENT', meaning someone who is rude and disrespectful. The second word is BRAT, which is a slang term for a child who is spoiled and badly behaved. The third word is PEST, which is a person who is irritating and difficult to deal with. The fourth word is PAIN, which is a synonym for something that is unpleasant and bothersome. The fifth word is PESTS, which is the plural form of the word PEST and refers to multiple people who are annoying and disruptive.