n.1.A hole for looking through; a peephole.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
When fishing through a long sight-hole another presentation option is to stitch the jig and minnow accross the bottom from one end of the hole to the other with line pinched between your thumb and index finger inch the bait along pause to let the minnow work then work it another inch or two When a Walleye goes nose-down tail up on the bait, don't stop stitching .A poof of sediment signals a take.