An absolute idiot, someone who has done something completely dumb and deserve to be called a pinecone. Can be sometime abbreviated to cone for more of a harsher meaning.

The best answer to literally anything

noun: a hard, conical shaped poo that comes out thin side first, thickest side last. 99% of all pinecone's result in excessive pushing, a clenched jaw, and extreme discomfort. a pinecone is similar to a feet-first birth.

A person who is so utterly dull and boring that you could dip him in peanut butter and roll him in nuts and birds would feed off of him

The kind of shit which involves tear-jerking pain and spiked feces coming out of your asshole. This is arguably the most horrible form of shit. It feels as if there is something slicing your bowels as you force it out of your bum.

It doesn't really mean anything....can be used as an insult as well as a compliment. Actual pinecones from trees are excellent for throwing at people.

code for slut/whore/basically any girl on a college campus. By calling these girls pinecones, people can openly talk about them without the pinecones even knowing.