FU has 2 meanings
You smell like expired milk.
Can be used within a sentence or as a standalone response; may want to avoid using because of the other meaning of FU.
Yes, I FU what you said.
|IIUC||If I understand correctly|
|AIUI||As I understand it|
|DUUT||Do you understand that?|
|IDU||I don't understand|
FU is an acronym that is used as a censored substitute for the "F*** you" phrase. It is most often spoken out loud or used in texts or online.
The two-letter acronym is typically utilized by people that don't want to swear but are really angry or in a bad mood. It is a popular comeback after getting dissed but not having anything clever to say.