Slangipedia - Slang Dictionary

1

It means you're gonna follow up. Like you're gonna go back and bother someone again.

Hey, I'm following up on that email you sent me, you lazy sack of dirt.

I'm following up because you didn't reply to my 100th text.

I'm following up because I'm tired of your dumb ass not doing your job.

2

It's the lazy person's way of saying 'FUCK YOU' without even typing the whole thing.

I'm sending you an F/U because you forgot my birthday again.

You got an F/U because you said no to my invite.

I hit you with an F/U because you didn't show up to my party.

3

It's the simplest, dirtiest way to tell someone to go to hell.

He texted me an F/U after I stole his lunch.

She sent me an F/U because I broke her phone.

I got an F/U after I told her boss she was a bad employee.

4

It's like a little note saying you're gonna keep bugging someone about something.

He used an F/U in his email because he was mad about the meeting.

She used an F/U in the group chat because she was annoyed.

I used an F/U in the message because I was trying to be polite.

5

It means everything is totally ruined. Like your life, your day, your whole existence.

My life is F/U because I got a D on my math test.

This party is F/U because no one showed up.

My food is F/U because I burned it again.

6

It's the shortest, most brutal way to tell someone to go to hell.

He sent me an F/U after I told him he was a bad driver.

She used an F/U when I stole her candy.

I got an F/U because I said her hair was ugly.

7

It's the move John Cena uses to beat people up, like he's carrying them like a fireman.

John Cena used the F/U to beat the guy in the ring.

He did the F/U because he was tired of losing.

The F/U was the finisher he used to win the championship.