grommet UK /ˈɡɹɒm.ɪt/US /ˈɡɹɑ.mɪt/noun 5verb 3forms 3 noun5 •A reinforced eyelet, or a small metal or plastic ring used to reinforce an eyelet. •An eyelet at the hoist end of a flag, used to fasten the flag to its halyard. •(slang) A young or inexperienced surfer, skateboarder, or snowboarder. •A ring formed of a single strand of rope, laid in three times round, fastening the upper edge of a sail to its stay. •A boy serving on a ship. verb3 •To insert a grommet into.The device takes the form of a guard for the punch presses which are used in grommeting mail bags in the process of manufacture. — 1923 •To fasten using a grommet. •To apply grommets. formsgrommeted · grommeting · grommets