EFF

EFF stands for "Extra Fast Fredbear" and is commonly used to refer to the creature known as Extra Fast Fredbear.

1: "WE GOTTA MAKE LIKE A BANANA AND SPLIT!"
2: "What's the point? EFF will catch us anyways."

by pickleFOID3030 October 31, 2025

eff beein

the action of facebooking someone in any situation/place... private/public

michelle: i'm eff beein in the privacy of my bathroom.

Catharine: I've totally been eff beein you in this public library.

Hank: i've been eff beein this ladyman

by catshewz May 31, 2010

ch-eff

person that thinks they are entitled to join any and every conversation while simultaneously cooking mediocre food and listening to bisexual

bruh why does ch-eff mike think he’s entitled to join our personal conversation

by urfavcartgirl! February 26, 2023

Eff

Really really hot person with banger tweets.

Have you seen Eff's recent tweet? It's so funny and relatable.

by cheequoa February 3, 2022

Eff

They literally said the F word on dictionary.com in the definition of this word

Guy 1: Searches "Eff" on the dictionary, but not the urban dictionary.
Guy 1's mom: What'tcha doing?
Guy 1: Oh, just searching Eff.
Mom: Hey, why does that say the F word?
Guy 1: Oh, why does it act-
Mom: You're getting grounded for searching the F word!
Guy: But-
Mom: This is final.

by Orrinpants November 2, 2021

Effe up

Also allowed 'eff up';
Infinitive from 'effed up' — meaning to fuck up, mess up, fail at doing smth, ruin smth.

Pal, your silly ideas are gonna effe up my whole plan to roll my balls to Tess

by Oaring_ore January 7, 2022

Eff

Another way to say "f in the chat"

Saying this makes everyone else in the room feel like an uncultured swine.

Person 1: Oh no! I dropped my mug.
Person 2: Eff

by Epic_Cheeto69 June 13, 2019