To hold at the button or buttonhole; to detain in conversation to weariness; to bore; as, he buttonholed me a quarter of an hour.

detain in conversation by or as if by holding on to the outer garments of; as for political or economic favors

a small flower or a nosegay that is worn on the left lapel

A bound slit in the fabric to allow the passage of a button for closure. Buttonholes are mostly made by machine these days, but many people do still prefer to make them by hand, using a special buttonhole stitch. General sewing term.

The hole or loop in which a button is caught.

a hole through which buttons are pushed

In knitting, buttonholes can be made in several ways.

to grab someone.