Lorem ipsum is a name for a common type of placeholder text. Also known as filler or dummy text, this is text copy that serves to fill a space without saying anything meaningful. It's essentially nonsense text that still gives an idea of what real words will look like in the final product.
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
The main reason for using lorem ipsum text is that it keeps people from focusing on the actual text. When someone creates a template and asks for feedback on it, they don't want the people reviewing it to get distracted by what the text says. Instead of focusing on the layout of the text, people might read the words to look for typos or sing along to the song lyrics.