The Meaning of FU
You have found the definitive source for the meaning of FU. This page contains all the definitions of FU, crowd sourced, moderated and curated by real people who care about the true definitions of FU.
The Top Definition of FU
The most popular meaning of FU is: Fully understood
What Other Meanings of FU Are There?
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What is FU?
FU is Fully understood
The definition of FU is "Fully understood".
The meaning of FU
FU means Fully understood.
Now you understand the definition of FU - FU means "Fully understood".
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What does FU mean? FU is an acronym, abbreviation or slang word that is explained above. If you ever forget what FU means, just come back to Slang.org and we'll define any acronym you need help with.