A hard candy on a stick that you lick as you eat it.
From British slang 'lolly' (candy, possibly from 'loll' meaning to hang loosely) combined with 'pop' (a sound). The term became standard in the 1920s-1930s.
The round candy shape was revolutionary in the 1800s because it was a clean way to eat candy without getting your hands sticky—practical design meets sweet treats!
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