Knitting: S2KP (skip 2, knit 1, pass slip stitches over)

In knitting, S2KP stands for “slip 2 together, knit 1, pass the 2 slipped stitches over.”

It’s a centered double decrease — meaning it reduces two stitches at once and creates a symmetrical, vertical decrease that lines up neatly with the stitches above and below.