Like Jeff, except not as good.

Also used as a replacement of fuck.
I got peed on. Eff.

Effing A I'm tired.

I just got effed in the a.
by Boki, Jeff, Bryant June 6, 2006
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Another word for FFS, similar to Oh em gee.
eff eff ess i just got pooneded by a manyang.
by Mike Egidi May 16, 2006
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Noun. Stands for Eternal Friends Forever. An EFF is a living thing that exists between two people. When an EFF is achieved, it must be nurtured and weened until it is healthy and mature. It brings joy to those that it belongs to and, depending on the longevity of the EFF, it will grant it's master's eternal life.....that is, until it is broken.
EFF can be used to describe the actual relationship or entity...

"Omg, the EFF totally sucks today!"

...or it can be used to describe the participants of the EFF...

"Omg like you are totally my EFF k? Pengers and smeagols!"
by Derk July 7, 2004
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(1) a chaste way of saying "to fuck."
d00d, I need to eff something. Oh, that looks good; I rather enjoy pumpkins.
by Natari. January 26, 2005
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noun- someone who you have met only once/twice or know hardly at all.

There is no limit to how many bee-eff-effs a person may have.
Girl #1: Guess what?!? Bob and I are totally Bee-eff-eff now!
Girl #2: Didn't you just meet him?
by bestfriendnotsomuch October 6, 2010
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The effort level you would give to poops a certain girl. Judged on a scale from 1-10, this is the most varying answer depending on the guy you ask. Other poops ratings are generally agreed upon by most guys.
Bill: Would you poops?
Tom: Hell yea. Effs?
Bill: About a 9. But I still wouldn't date her.
by MisterPoops January 25, 2009
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