Lol I came to say this too. "I'm a vegetarian.  Mac and cheese is a vegetable, right?" I remember once reading that "vegetarian" doesn't simply mean lack of meat, but refers to a diet based primarily on vegetables.  I'm not sure if this was an official definition or just a personal opinion. What I think is really cool is when people are vegan or vegetarian but they don't feel the need to make that their entire identity. I have two coworkers that I didn't know were a vegan and a vegetarian until years after I knew them. I have enourmous respect for that.    There are several reasons why someone might be a vegan or vegetarian, but if someone is doing it just for the attention and an opportunity to say "hey everyone, look at me! I'm a vegetarian, isn't that so trendy and cool!?", this is not a valid reason IMO.