K2tog twice

Hi there, I was wondering what does k2tog twice mean?

It means to knit two stitches together twice. It’ll decrease two stitches. I don’t know if you knit english or continental, but the decrease is the same. It’s very easy and one of the most common decreases. Here’s a link to the videos.
http://www.knittinghelp.com/videos/decreases

Thanks!