BFFL 

Standing for "Best Friend For Life," BFFL is used between people that like each other, but know that they won't be friends in the afterlife. Not as binding as BFF ("Best Friends Forever").

Dave: "Hey BFFL, I was thinking. We're close friends. Why don't we start calling each other BFFs?"

Jeff: "I'm sorry Dave, I just can't make that kind of commitment. However, if we do happen to be best friends in the afterlife, I'll definitely upgrade our relationship."

Dave: "Thanks man. I really appreciate it."

BFFL by sammysf October 26, 2010

BFFLAE 

Best Friends For Life And Eternity
like BFFL, but for ETERNITY, as in AFTER life. AS if you and that person would find each other after you both died, and that you would always stay friends.

You are at your friend's house and are having so much fun! She says: You are my BFFLAE!
You: what is that?
Her: Best Friend For Life And Eternity!
You: Totally!
Her: See you at school tomorrow!

BFFLAE by LOL luvr November 16, 2009

Biffle 

one's BFFL, or Best Friend For Life. it is supposed to be the opposite sex, whom one is JUST friends with, and wouldn't ever date. however many biffles become boyfriends, which really defeats the purpose. unlike best friends, you can only have ONE biffle.

"I heard you and Johnny have been hanging out a lot, are you dating?"

"No way, he's my biffle, duh."

Biffle by Britney Kay October 1, 2005

baffling 

Shocking, appalling, straight up jaw dropping

It was baffling to see goody two shoes Susie dress like a skanky whore to school.

baffling by slushxlush August 28, 2006

Bifflerette

An amazing girl that is very close to you. Somebody that you can trust on. Most commonly, a very pretty girl.

So i have this friend, shes been my Bifflerette for many years. I love her.

Bifflerette by Deniss January 2, 2009

bfflutwctac

best friends for life until the world comes to a crumble.

You are my bfflutwctac!
And you are mine

bfflutwctac by Anistella June 30, 2009

BFMFL 

Best First Mate For Life
Used to refer to male to male friendship in non-homosexual way. It infers a deep connection of brotherhood and comradery.

Dude, serisouly, your my BFMFL.

BFMFL by Captian Lavyy June 3, 2010