You found condom in trunk of boyfriends car with expiration date 122011 when did he buy this?

Typically it is 5 years after manufacture, so from about the end of December 2006.

ANSWER:

When it comes to that stuff ( condom) I don't know anything about the expiration date. The question is why are you so interested in the date. If you found this in your boyfriend's car trunk, then he probably use it, or maybe not but it might have some kind of story behind that condom you found. A little advice this happened to me before from the man I married. I had found a condom inside his car, but there's a lot of story he gave me including my own daughter. Never forget it because that was the start of my question, which was he was having affairs already but not having sex yet, that's what he said, Ditto right?