Definition of laccy in English:

laccy

(also lacka, lackie, lacky)

Pronunciation /ˈlaki/

noun

informal
  • Elastic. Also occasionally: an elastic band. Somewhat rare except in lacky band .

Origin

Early 20th century; earliest use found in Rudyard Kipling (1865–1936), writer and poet. Apparently a hypocoristic shortened form of elastic.