Acronyms dictionary STFU or stfu Published March 27, 2018 What does STFU mean? The acronym STFU stands for shut the fuck up. It’s often used when people are angry or upset with someone, usually online. Examples of STFU STFU Parents: 4 Examples Of Unintelligible Parental Language Butchery On Facebook Headline, mommyish.com, September, 2012 STFU doesnt mean become a mute. It means dont say what you were going to say. However if your frame is lacking, to prevent that vomit of emotional puke from spilling all over her - shut your fucking mouth and say nothing. SeamusAwl, Reddit, August, 2017 When you’re worried about other people telling you to STFU, several bad things happen when trying to gain social media stature: You only speak when you’re totally sure of yourself. You carefully measure how everyone will react. You make sure nothing you say will cause anyone to think less of you. Jonathan Morrow, copyblogger.com, July, 2009 SEE MORE EXAMPLES Just Added rage farming, hermano, food coma, National Medal of Arts, Talk Like a Pirate Day Note This is not meant to be a formal definition of STFU like most terms we define on Dictionary.com, but is rather an informal word summary that hopefully touches upon the key aspects of the meaning and usage of STFU that will help our users expand their word mastery.