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Internet

psa

What does psa mean?

Stands for 'public service announcement,' used to mark a post as important info worth everyone's attention.

"PSA: the bridge is closed all weekend, take the long way."

Origin

Borrowed from broadcast media's 'public service announcement,' the term moved online as a tongue-in-cheek or genuine way to flag important info to a feed or group.

Frequently asked questions

What does PSA mean in slang?
It means 'public service announcement,' used online to flag info you think everyone should know. It can be serious or jokingly self-important.
Is a PSA always serious?
No, people often use it humorously for minor complaints, like 'PSA: reply-all is not your friend.' Tone gives it away.
Where did PSA come from?
It started in radio and TV as genuine public-interest messages. The internet borrowed it for both real heads-ups and comedic ones.
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Slang definitions: FreeDict original editorial.