What does wyib mean in a sock pattern?

[kittenosmall]

hi, I am new to knitting and this is myfirst post, I will be attempting to make a pair of socks soon and took out a library book and copied the pattern, unfortunately, the book was returned to the library before I looked at the pattern. Can anyone please help me figure out what wyib stands for? Thank u! also has anyonehad any experience with circular knittinf two at a time socks? Tho these socks will b made on dbl pointed needles, thanks againfor anyhelp!