United StatesNorth Americageneralinformalcolloquialdated
A long, indulgent business midday meal during which several alcoholic drinks (especially martinis) are consumed; often implies socializing or deal-making rather than productive work.
2.
United Statesgeneralinformalfigurative
A metaphor for corporate or social extravagance, impropriety, or unproductive leisurely behavior during business hours.