Knitting: k1tbl (knit 1 stitch through back loop)

In knitting, k1tbl stands for “knit 1 through the back loop” — it’s a variation of the basic knit stitch that twists the stitch by knitting it from a different angle.

Instead of inserting your needle into the front of the stitch (like in a normal knit stitch), you insert it into the back leg of the stitch. This twists the stitch, making it look tighter and more textured.