everything but the kitchen sink
US /ˈev.ri.θɪŋ bʌt ðə ˈkɪtʃ.ən sɪŋk/
UK /ˈev.ri.θɪŋ bʌt ðə ˈkɪtʃ.ən sɪŋk/

1.
almost everything imaginable, whether necessary or not
:
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When they went on vacation, they packed everything but the kitchen sink.
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The child wanted everything but the kitchen sink for Christmas.