In this case is "dick" a noun or a pronoun?
Example:

You don't know dick.

According to wiktionary is a countable noun, but I think this is a pronoun like "nothing.". I think it's odd call this a countable noun.It seems I was wrong about this :)
In wiktionary it is an uncountable noun :)

Question

In this case is "dick" a noun or a pronoun?
Example:

You don't know dick.

According to wiktionary is a countable noun, but I think this is a pronoun like "nothing.". I think it's odd call this a countable noun.It seems I was wrong about this :)
In wiktionary it is an uncountable noun :)

Answer

"You don't know dick" means "you don't know shit,  or, in more acceptable English,  " you don't know anything".

Answer

From: http://oxforddictionaries.com/definition/english/dick

noun 
 vulgar slang
 1a man’s penis. 
•
(British) a stupid or contemptible man ((though I've heard a fair number of Americans use it this way)). 
2 [mass noun, with negative] (North American) anything at all

So in the US, we've shifted it to uncountable for this meaning, but I think it falls short of pronoun status. ("?Dick is wrong." for "Nothing is wrong" -- I'm not sure it's there yet) And you should use it sparingly in mixed company.

Answer

Yes. It is an uncountable noun. Keep reading the sentence until you see it.