look up any word, like hipster:
 
4.
Phrase commonly used by silly Welsh people who have limited vocabulary. It is an easy way out for describing how good something is.
Cool as Fuck = Really good
Funny as Fuck = Hilarious
Smart as Fuck = Verry Pretty woman
New as Fuck = Brand New
Safe as Fuck = Good Deal
by infinity February 25, 2004
 
1.
A phrase inserted after any adjective to make it stronger.
I'm drunk as fuck.
I'm horny as fuck.
I'm tired as fuck.
I'm blazed as fuck.
I'm screwed as fuck.
by i swear to god i'm not drunk November 15, 2005
 
2.
phrase used to describe how intence a situation is
(can be added to any adjective to stress the severity)
Dude thats noisy "as fuck"
thats dumb "as fuck"
white "as fuck"
delicious "as fuck"
by canteberry June 27, 2010
 
3.
An expression that can be added to almost any adjective to give emphasis. It generally means, "Extremely" or "To the utmost degree." This expression is very flexible (you might say it's flexible as fuck?), as you can use it to modify essentially any description, good, bad or other.

Opinions are divided as to what the word 'Fuck' means in this context:

One one hand, you could easily argue that it is referring to the act of 'Fucking.' IE "This thing was thingy as fuck," meaning that the thing was so thingy that it resembled fucking. This was probably where this phrase originated.

However, as mentioned above, the phrase can also be used alongside negative descriptions as well as positive ones. IE "That shit was painful as fuck!" Given this, it's safe to assume that the word fuck, in this context, has no meaning at all, and is likely just used for emphasis, as it is a curse word.

The phrase can be used by anyone, but is limited in reach by it containing the word 'fuck.' The phrase is also somewhat vacuous, and more-or-less accomplishes the same thing as an exclamation point. Due to its loud and vapid nature, it has become very popular in the Bro community.
-This is legit as fuck! (probably the most common usage)
-My hand-writing is girly as fuck
-This sandwich is dank as fuck
-I am writing this UD post because I'm bored as fuck
-Dis club is tight as fuck

Atypical but still appropriate uses:
Programmer: "This algorithm is optimized as fuck!"
Doctor: "That patient's sick as fuck!"
Hipster: "This restaurant is main-stream as fuck!"
by asdfghjkllllllllasdfasdfll July 15, 2014