eff

¹

[ ef ]

verb (used with or without object)

1. fuck:

   Stop effing around and get to work!

   Eff you, you lout!

noun

1. the word “fuck”; the f-word:

   peppering his speech with superfluous and highly offensive effs.

verb phrase

1. Go away!:

   Eff off and die, you piece of Martian scum!

eff.

²

abbreviation for

1. efficient, efficiency.
2. effective, effectiveness.

eff

/ ɛf /

verb

1. See fuck
   taboo.
   euphemism for fuck

   eff off

2. eff and blind slang.
   eff and blind to use obscene language

Derived Forms

• ˈeffing, nounadjectiveadverb

Word History and Origins

Origin of eff¹

1940–45; euphemism for fuck, with eff as spelled form of the name of the initial letter

Example Sentences

My sister went to college all the way until she had like one or two more credits to take, and then she was just like, “Eff this.”

From The Daily Beast

"He was told to eff-off on more than one accession by the surfers here," Mr Robinson said in a phone call today.

From The Daily Beast

A spreadsheet prepared by EFF shows judges dismissing 40,000 defendants from such lawsuits.

From The Daily Beast

I'm doing what I love best for a few short hours—so eff Madoff right now.

From The Daily Beast

The girl Eff sat by the fireplace, humming some light measure.

From Project Gutenberg

Wal, I toled har, Id stan' by har eff evrithing went ter h—l—an I wil, by ——.

From Project Gutenberg

She had a little maid who attended her,—Eff she called her,—and the girl stood by to watch while Anne did my bidding.

From Project Gutenberg

So I got the tackle of Eff's father—rude enough it was in all conscience—and in the early afternoon I set out to the sport.

From Project Gutenberg

Then she stopped exhausted, smiled on Eff, who sat like a cinder-witch all the while, and smoothed the hair from her brow.

From Project Gutenberg