In the article, the author focuses on the class of objects that the word metalanguage relates to. He points out that the expression used in the title can denote different sets of elements. He also tries to show that using the name metalanguage without specifying the way of understanding the word language, can lead to misinterpretation. At the end, he tries to explain why expressions like metacegła (eng. metabrick), metawiadro (eng. metabucket) should be considered as semantically incorrect.