that is probably an increase.
Weird text for that. But I assume that you are supposed to lift the bar between the stitches up onto your left needle, purl it (usually one does that through the back loop of that bar, to avoid holes) and continue.
Do you have a link to the pattern?
And did you check carefully... is there really no glossary / expalantion of what exactly they want of you?
Edit: found the link: http://www.yanaknits.com/projects/soccer-ball/
there really is no text explanation about that step. But follow my instruction above and ready you are.