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Similar to Best Friends Forever (BFF), Best Enemies Forever (BEF) means two people who love to hate each other and rip on each other every chance they get. They are sworn enemies who form a bond of hatred so strong that it's more like a perverse kind of friendship.
Bill: "Goddammit, I hate that asshole Craig! Who does he think he's trying to impress??"
Dan: "Dude, will you stop talking about Craig? When did you two become BEF?"
by Ben Frey November 29, 2006
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"Oh yeah, that guy was my BEF"
by Super&Orange November 16, 2012
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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3
British
Expeditionary
Force
The BEF escaped at dunkirk beaches.
by Gumba Gumba May 21, 2004
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To block someone from all forms of contacting you (ie deleting off facebook, myspace, blocking on msn) for absolutely no reason at all.
1. I'm gonna pull a bef on that guy I met last weekend
2. She totally beffed me
by sarbear & cheezel April 19, 2009
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A word used to describe someone who looks slightly like justin bieber but also like zac efron. hence, bef (bieber efron combo)
Usually in a way that takes their good characteristics to make a seemingly perfect (bef) guy.
Wow look at him, he's so bef
by prettylittleliar May 20, 2010
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The vengeful act of crapping on a lover's chest while they sleep.

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bef - ugly slut, from the latin 'bevfkin', mother of all that's slutish, roman godess of anul sex
i wouldn't use your nob on that tart, she's a right bev
by bev - as in slang for beer October 26, 2003
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An insult for people who were born with big ears, despite the fact that it's not their fault they have big ears.
Lora is a BEF, she has ears like Dumbo.
by Alexi August 31, 2003
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