As the language develops every time, there are new languages and terms emerge day by day in the society. A new language and term use new words that we can relate to the one of linguistics branches of the morphological aspect namely word formation process. Word formation process is the process of creating new word and terms from the use of old words. One of the language phenomenon is in the practice of language used in online shop business specifically clothes online shops sold in Blackberry Messenger in Blackberry Smartphone. Clothes online shop is a popular shopping way nowadays because it offers the practical way of shopping for the buyers. People as the consumer prefer to buy their clothes practically by using Internet in clothes online shops rather than going to the clothes shops such as boutiques, mall, department store, or traditional market. Clothes online shop is the clothes shop which sells many clothes of man, woman and also children by uploading their pictures via Internet as the main marketing tool. It is sold via websites or social media such as Twitter, Facebook, Instagram, Blackberry Messenger, and many others. In this case, the writer observed the clothes online shops which are sold in Blackberry Messenger through the group conversation and clothes information in clothes online shops. This research is aimed at finding out; (1). The list of the terms used in clothes online shops, also (2). The word formation processes of the terms used by clothes online shops. Keywords: Word Formation Process, Term, Clothes Online Shop, Blackberry, Blackberry Messenger, BBM.