Been a while , what does this mean?

p2, kfb, [k1, (k1, yo, k1) all into 1 st, k2]

does it mean, k1, then( k1, yo, k1) into next stitch? then k2? I have never knit that many sts into 1 st. !

I am a knitter, but have not knit in a year or so and just not sure I understand the directions.

Thank you

It’s a bobble type stitch. The first part she’s doing more stitches in this video, but the next time it’s the 3. It gives you the idea though.

Here’s another one. The video is small, but the first part is what you do.