The meaning of STFU is Shut the F**k Up. This may sometimes be used by people when they are extremely angry at another person. This may normally be used when people are having arguments about different things. For example, you may be having an argument with your friend through chat and you are saying a lot of things.
When the friend tells you to STFU, this means that the person wants you to stop ranting or sayings things. There are instances when this can be effective because the more that you say, the more that you can make mistakes. This is definitely something that you do not want to happen for sure.
Have you ever wondered what the acronym STFU means and how it is used? There are so many acronyms online which if you don't know them you will be frustrated and helpless about what they might mean. STFU is the acronym for shut The Fuck Up, this is used when people are upset or angry with someone as a result of what they have earlier said.
The slang word is often used online, also people who engage in online chat conversation or text messaging use this acronym alot. When you get the the acronym STFU as a reply for something you have earlier said, it means the person is not pleased with it and that you should stop talking about it.
The slang 'shut the fuck up' is a very common slang. It is mostly used alone to reply someone. Never forget not to use this type of acronym in a formal communication or writing.