1. “That’s so gay”
    When you use the word “gay” to describe something uncool or negative it equates being gay to something uncool or negative, which is obviously completely unacceptable. Usually when a person slips and says this, they aren’t trying to cause harm, and probably aren’t even homophobic, but it's still a bad habit.
  2. “She’s such a slut”
    Calling someone a “slut” is a deeply offensive, usually completely unwarranted attack on someone’s character. Even if you say it in a sarcastic or jokey way, even to a friend (of any sex), you are encouraging the socialization of negative, derogatory language toward women, and ain’t nobody got time for that.
  3. “I was so bad today” (in regards to eating food)
    Is the cookie you had at 4 p.m. really “bad”? Was it an evil taco you consumed? No. The funny thing about this phrase is that it actually hurts you as well as others. When you describe your eating habits as “bad” you are unnecessarily beating yourself up. But saying how awful you are because you had pasta for lunch doesn’t negate the calories — it just makes you feel badly about yourself, and not enjoy your treat when you do decide to splurge.
  4. “That’s so ghetto”
    Sometimes phrases are so ingrained in our everyday lingo, we forget to think about where they come from, and the root of the phrase is not always pretty. Just find a different way to describe something if you absolutely must comment on it.
  5. "Retarded"
    When you allow yourself to fully appreciate this term, it's actually astounding that anyone would ever use it. It's an incredibly demeaning and hurtful term that disregards the struggle that millions of people suffer with. There is nothing laughable about having a disability, so don't allow yourself to forget the root of this word and if you hear someone else using it, correct them immediately.
  6. Bonus words: F*ck, Sh*t, etc…
    Yes, we all have days where we can’t resist a good four-letter expletive when we stub our toe or get caught in the pouring rain. But the truth is, swearing gives a sharp, aggressive tone to your speech, and it can rub people the wrong way. Again, once in awhile is no big deal, just don’t make a habit of it or you never know when you’ll slip up. A presentation, an interview, meeting the President…