when you comes into the girl's mouth you usually says "opita!!!".... is it french and what does it mean ? thanks!

Do you mean "oh putain"???

Putain is like slut in this sense... I think it's what you are referring to...

You are right Rafale, "putain" means "slut" literally. But in the context this word is an interjection to show the surprise, something like "oh my God" or "Fuck!"

exactly
since french revolution, "putain" and "oh my god" mean the same

I think that video is already somewhere on the forum but you can get a finer translation here
http://www.youtube.com/watch?v=GSeaDQ6sPs0

Yes I remember when St Dav posted this. I guess I thought in this context he was calling her a slut, but I can understand what you mean.

You guys are dangerous! The last thing I need is a better grasp of French profanity.