cocket /ˈkɒkɪt/noun 2adjective 1forms 3 noun2 •(UK, no longer used) A document issued by the bond office stating that duty has been paid and goods may be sold. •(UK, no longer used) An office in a customhouse where goods intended for export are entered. adjective1 •(no longer used) pert; saucy formscockets · more cocket · most cocket