Just being honest

When you think shooting out your opinion, no matter how lying, incorrect, rude, obnoxious you're being, you can cover it by saying "I'm just being honest!" No, you're a jerk, and that's two different things. You ought to have your ass kicked, but most people are too nice and will let it slide. If you keep it up, someone will in fact knock your dick in the dirt, particularly if you're drunk. Hopefully everyone will take a turn, then rip your vocal cords out so "Just being honest" won't be possible for you anymore.

Rude person walks up to someone who is mildly overweight "Holy crap, you're a ugly fat cow!"
Someone else "Hey, watch your mouth!"
Rude person "Hey, I'm just being honest!"