Definitions for "Steek"
To pierce with a sharp instrument; hence, to stitch; to sew; also, to fix; to fasten.
a vertical strip of knitting in a garment knit as a tube, down which you cut to create a front opening, or a slit for a sleeve
In knitting, steeking is a shortcut used to knit things like sweaters in the round without interruption for openings or sleeves until the end. After completing a tube, a straight line is cut along the center of a column of stitches, in order to make room for an opening or place to attach another piece. The steek itself is a bridge of extra stitches, in which the cut is made, and is usually 6-10 stitches wide.
In Northern Ireland, a steek is a pejorative slang term used to descibe a sub-culture. In some circles, the more common word spide means the same sub-culture as a steek - a young unemployed male who dresses in sports gear and baseball caps. However, steek has occasionally been known to be used to describe young people, mostly again males, who over-dress in "trendy" clothes.