It can be used as an insult to belittle someone ,or to add sas in a text.
Ummm FYI it’s red not blue!

Just an FYI he will not be coming to your house today!
by Jdtdes45 April 5, 2021
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it mean "for your information"

it's mostly used when telling unnecessary information like:
person 1: i was raped when i was young
person 2: FYI rape was not found until 2004, so don't lie
by CAT_LUVS+STB March 13, 2023
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FYI stands for: “for your information”
It is usually used in a snarky way to rebuttal someone’s sentence or used to actually inform someon
Snarky: “And FYI i am gay so...”
Informational: “FYI I am going to Alaska”
by Information UWU June 16, 2019
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The doctor diagnosed me with an FYI.
by D3J3$u$1440 December 8, 2020
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Safe for work.
I used “FYI” multiple times in the netting today and they just thought I was being information…instead is was cursing them all.
by Caitiedyd January 19, 2023
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