- (dated) The evening meal for servants, separate from the family's meal.
- The cook prided herself on making the kitchen supper as delicious as the family's dinner.
- An informal or semiformal meal served for guests, not necessarily one served in the kitchen.
- The couple threw an impromptu kitchen supper when the dinner reservations fell through.
For usage examples of this term, see Citations:kitchen supper.
In contemporary British use, the phrase is seen as snobbish and very U. Charles Moore in The Daily Telegraph describes it as "disclosing an assumption – we have a nice dining room but we’ll be all relaxed with our pals and won’t use it – which is perplexingly, excludingly foreign to [a general] audience", while Harry Mount says that "[although] the ingredients of a kitchen supper are universally recognisable [...] the actual expression is confined to the upper-middle classes".