everything but the kitchen sink

• everything and the kitchen sink, everything including the kitchen sink

Originally military slang, 1944.^[1]

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everything but the kitchen sink (uncountable)

1. (idiomatic) Almost everything, whether needed or not.

   Synonyms: everything under the sun; see also Thesaurus:everything

   She must have brought everything but the kitchen sink along on the trip, and how she lifted her suitcase, I do not know.

• “everything but the kitchen sink”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.
• “everything but the kitchen sink”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.