Be careful with what you say online, because you might be met with one of these extreme comebacks. Online, anyone can say just about anything, there are online arguments and fights that happen constantly, especially on Twitter, and some people are just better with the comebacks and insults than others. It's utterly embarrassing to see someone get totally owned online, especially when they were so confident before.

Reddit's /r/MurderedByWords is a subreddit that collects and documents many of the best and most hard-hitting rebuttals and comebacks seen online from people who held nothing back. These people seem to know exactly what to say no matter what the situation is, and these roasts and insults are sure to leave a lasting mark on the receivers. While most people struggle with coming up with a comeback on the spot, these clever individuals do not. Here are 23 people getting absolutely murdered by words online in some tense arguments and debates.