Horse iron

(Naut.) a large calking iron.

See also: Horse

References in periodicals archive ?
But they often go too fast in this race and, with Holy Smoke almost certain to be up with the pace, I prefer to be on hold-up horse Iron Mountain, ridden by Emma Ramsden.
There was nearly a nasty incident after the finish when third home Arch Rebel jinked and unseated Shay Barry after loose horse Iron Duke ran towards him.