grapper /ˈɡɹæpəɹ/ noun2 •A metal ring or leather strap on the base of a lance behind the grip, designed to stop the lance from moving backward by catching on the lance rest or on the lancer's chest and arm when the lance was tucked into the armpit.Likewise , if the jouster's spear were tied with 'thonge' or 'grappers', he should be ejected ignominiously. — 1997 •(no longer used) A grappling hook or grappling iron.We fastned grappers in her, and soe towed her a head. — 1625 formsgrappers