When people ask to borrow something that I'm not going to get back. "Can I borrow some gum". No you can't, you can have it, definitely don't want that back.
When you're crying and someone thinks it's really useful to respond with "don't cry". Oh don't cry, got it, I'm all better now!
Im not sure why it annoys me so much but the word random. "That's so random"
When people say "I could care less" instead of couldn't.
Preggers/Preggo
When people post a status saying how terrible their day has been, or something similar, then saying they don't want to talk about it when people ask. Why bring it up then?? There's inevitably someone who comments saying that they've DM'd them. Also pointless!