The phrases, sayings and famous sayings that you MUST NOT use. You will look boring or unoriginal. 

"Bromide" in literature refers to phrases or clichés that are overused and no longer surprise anyone. They are those phrases that everyone repeats and sound unoriginal. In this video you will find the most famous phrases considered "bromides" nowadays. At the end of the video you will find a little more about the origin and use of this word.