"Just saying"
Whenever I hear this I hear "I don't want to be a part of this conversation, but I feel it's necessary to add my input whether it's right or wrong. And don't bother responding because I'm not part of this conversation, so I'm not going to explain or defend it." It makes me want to punch them right in their mouth.
"That's just your opinion" "I'm just stating my opinion"
This bugs me only because
no shit. If it's coming out of your face, it's probably your opinion. It also ties with above, the people who usually say this usually have the thought of "well since it's just my opinion I'm allowed to say whatever I want nyeh nyeh", or "since it's just your opinion I can just opt out haha!" It's like they know they've made a mistake but they don't want to get off their high horse. Usually arguments where people give there opinion are usually about trying to
change someone's opinion, so saying "that's your opinion" is just retarded.
Whenever someone replaces "o" with "aw", like lawl, or bawls. I just find it dumb. I really don't have a reason for this.
Excessive uses of the word "like" can be annoying. I know it's intended to be a filler for someone who doesn't have good speaking skills, but it get's out of hand. At least there's no reason for it to be on the internet.
Also the word "epic" makes me cringe.
edit: here's a video that goes with "just sayin":
http://www.youtube.com/watch?v=oKN47KhflCY
he spends the first 90 seconds talking about a trip or something lol sry