The story
Coined in 1930, from the name of a favorite horse owned by the Mars family, from snicker (“to whinny”) + -s (hypocoristic suffix).
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A chocolate bar produced by the Mars company, with a peanut, caramel and nougat filling. Full definition →
Coined in 1930, from the name of a favorite horse owned by the Mars family, from snicker (“to whinny”) + -s (hypocoristic suffix).
Etymology from Wiktionary, CC BY-SA 4.0.