cufflink
/ˈkʌflɪŋk/
noun
- A small decorative fastener used to hold the two sides of a shirt cuff together, often made of metal, plastic, or other materials.
- He wore silver cufflinks with his tuxedo to the wedding.
- The cufflink slipped out of the shirt and rolled under the dresser.
- She gave him a set of cufflinks engraved with his initials for his birthday.