"Drug and Disease Free." this is often found in online personals ads -- especially for casual sex.
"I am 24, 5'10", size 6, pretty, fun, non-smoker, social drinker, love to laugh. I'm looking for a man to play with. Age and weight are not important, just be taller than me, funny and DDF."
by Scooterams October 11, 2005
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DDF or Daily Dose of Frank
(Original - Dnevna doza Franje (Croatian))
For when you have a friend in group who just has random outbursts of unrelated, fairly stupid comments or jokes and after a while you become used to it and call such phenomenon - DDF.

It's also appliable for when someone else has stupid remark and you call it DDF in respect to Franjo, the ultimate redneck.
(in original his name is Franjo which is croatian for Frank - and therefore "Daily Dose of Frank")
Out of the blue, unrelated he says something like

Frank: "If someone threatened you with a gun, what would you do? - suck him off"
Everyone: "hahaha, DDF!"
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Original:
Franjo: "da ti neko prijeti s pištoljom kaj bi mu napravil ? - popušil bi mu kurac"
Svi: "Hahaha, DDF!"
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Frank: "Shit on me my pidgeons, shit!"
(Original Franjo: "Serite po meni golubovi moji, serite")
by bloodalpha August 18, 2014
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Acronym: Distant Distortion Factor
When a girl looks damn good farther away, but really is a skank whore up close.
aiken - Man, check out that girl.
tommy da cat - Dude, that's a guy.
aiken - shit, ddf
by tommy da cat October 21, 2002
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Don't do feelings
Msg: I like her but after my ex, I ddf.
by Partially Hopeless February 02, 2018
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Dick Don't Fit.
Simple. When a guys dick doesn't fit in a girls pussy cause she's just too tight.
"Babe it's just not going to fit"
"ugh fine DDF"
by Jackson Frosty November 18, 2013
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