Under the Glossery, you forgot:

SALTY: Rusted, pitted, torn, moth eaten, or otherwise poor condition. Commonly used by sellers to explain why their asking high prices for junk. Buyers who can't afford better condition items normally buy these then brag "I like the been there, done that look".

STRAIGHT OUT OF THE WOODWORK: Recently purchased for a fraction of what I'm asking for it now from uneducated previous owners. Normally the seller's high profit margin items.

NEVER IN A COLLECTION: May have changed hands a dozen times since the sellers purchased it, but makes the buyer feel special like he captured the item in combat himself.

BLOOD PITTING: My favorite explanation for pitted metal. It sounds better than "The last owner kept it in his basement" or "stored it in a damp leather holster or sheath".