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)
by Noel Lee. March 3, 2007
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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.
(girls with basically no clothes on walk by)

"Dude, do you smell some pinecones or is it just me?"
"Yeah man i smell it, there must be a pine tree around here somewhere."
by Art M. Typal October 31, 2011
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A joint, or marijuana cigarette. Typically rolled in a cone shape, but not necessarily. A term coined by Pittsburgh based rapper Beedie.
by GURUSTU412 March 5, 2013
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Inserting a pinecone into the rectum.
Dude, I'm totally Pineconing that chic tonight.
by squid33 December 2, 2010
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someone who just stands around and is completely irrelevant.
everyone is having fun and sarah is stood doing nothing
guy: sarah's stood there like a pinecone
by pine and cone December 25, 2016
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