Define SSK in a knitting pattern?

slip two stitches to the right hand needle, insert the left needle into the back loops of these stitches and then knit. I find this too fidley to do so i use S1 K1 PSSO as it gives the same results: Slip one stitch to the right hand needle, knit the next stitch off of the left hand needle onto the right, pass the slipped stitch over the knitted stitch. It gives exactly the same results but isn't as difficult.

James