The story
From jingle (“sound of metal, etc., clattering against itself”, attributively) + bell.
Etymology from Wiktionary, CC BY-SA 4.0.
jingle bell
jing·le bellToday it means: A small, hollow, spherical metal bell with a narrow slit opening or small holes, containing a loose ball or rod as a clapper, which is attached to a horse's harness as a signal, or (music) used as a musical instrument. Full definition →