STFU: Shut the Freak Up
STFU Full Form
The full form of STFU stands for Shut the Freak Up. It is a direct command that means be quiet but is generally considered a more powerful command to prevent noise or conversation, such as talking.
This phrase is probably a shortened form of “shut up”. Its use is generally considered rude and obscene, and can even be considered a form of uncleanness to some people.
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