bummer

Bummer is a common slang term that is used to express frustration or disappointment over a situation. Bummer is usually said in a sympathetic way over something that has happened to someone else and in response to them telling you about it. Thats a bummer or what a bummer are some of the most common ways that bummer is used. Bummer has become a common slang term making it a well-known cliche in modern language.