DBFS 

DBFS is an internet abbreviation for "don't be fucking stupid." Its primary use is to admonish someone for a stupid question or their lame behavior.

DBFS is often preceded by a hashtag (regardless of medium): #dbfs

Allison: What are you doing on Sunday night?
Liz: It's Sunday, we're watching "Game of Thrones." DBFS!
Allison: I haven't started watching it. What is it about?
Liz: Winter is coming. Just watch it. DBFS!

DBFS by dbfsjoe September 27, 2013

Duffsex 

Duffsex is where erectile dysfunction, performance anxiety or alcohol intoxication leads to the disappointing premature discontinuation of intercourse without climax by either participant.

guy1: dude, did u hear hadi got laid last night? with this bear fit irish chick innit!
guy2: yea but it was duffsex... how embarrasing. shame about the bird too, she's zhaofit.
guy1: no way! is he gay?
guy2: no think he was just too wasted innit and such.
guy1: well, at least he didn't have to pay this time.

Duffsex by chairmanzhao May 31, 2010

T Diffs

Shortening of the worn-out phrase, "technical difficulties."

Ladies and gents, we're having some t diffs, but we'll be moving on shortly.

T Diffs by Musicman112RD September 29, 2010

DBFFL

Originating from the acronym BFFL (Best Friends For Life), DBFFL takes the relationship between two people one step further as it adds an element of intoxication (Drunk, Drinking, etc.).

K: I love you so much!

J: Oh my god we are such DBFFLs!

DBFFL by Dreezy Weezy October 11, 2010

deffs

abbreviation for the word 'definitely'

'Are you going to come out to the movies with us tonight'

'Yeah deffs, i would love to!'

deffs by Millie...ew December 9, 2008

Duffs 

A brand of cool US Skate shoes.

Yo man, you see those dope Duff Roadrunners? Way Fresh!!

Duffs by PHIVOLCS March 24, 2004

dbff 

Drunk-bff. Drunk best friend forever. The phenomenon that occurs when two people are best friends when drunk, however when sober, they have nothing to say to each other. They might even find each other completely boring when sober.

ex 1
Me and john are dbff's, we have so much fun at parties, but it's so awkward to be around him when we're sober.

ex2
I really want to talk to her right now, but we're only dbffs.

dbff by hoyaplaya February 19, 2009