Definitions by Noel Lee.

pinecone 

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.

"I hate you, you are a pinecone."(insult)

"You're such a pinecone."
(compliment or insult. depends on tone of voice)

pinecone by Noel Lee. March 4, 2007