Meanings
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1
noun
a person who is eating or habitually eats lunch, especially at a restaurant or gathering
The few remaining lunchers looked up when she laughed loudly.
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2
noun
a person who treats someone else to lunch
As the luncher, he insisted on paying the bill.
Thesaurus
Etymology
Formed from lunch and the agent suffix -er, meaning either one who lunches or one who gives another person lunch.