Definition of deep-six in US English:

deep-six

verb

[with object]North American
informal
  • Destroy or dispose of (something) irretrievably.

    ‘someone had deliberately deep-sixed evidence’
    • ‘Among other things, the legislation deep-sixed restrictions that had forbidden banks from owning insurance companies and brokerages, and vice versa.’
    • ‘They never really wanted to offend their corporate contributors, and now that the elections are over, they've deep-sixed any action to stop this tax scam.’
    • ‘So even as NASA and its international partners build their brand-new space station Alpha, there is a detailed plan to safely deep-six the outpost when its days are over.’
    • ‘A loss would deep-six his career and ruin his self-image.’
    • ‘The old notion of stretching first, when your muscles are cold, was deep-sixed long ago.’
    • ‘Frankie and Johnny was deep-sixed by an unlikable heroine and a rather boring screenplay.’
    • ‘What might have been an endurable serial killer flick is deep-sixed by superfluous scenes and atrocious writing.’
    • ‘The government clearly had no use for the commission's 1979 report and deep-sixed it on arrival.’
    • ‘Likewise, a promise to deep-six an auto-tax hike could also fall by the wayside.’
    • ‘Today he is pressing the important story of the independent counsel report that some would prefer to see deep-sixed: ‘Coverup?’’
    • ‘The administration, of course, has already deep-sixed that one.’
    • ‘Robbins should have deep-sixed the sentimental scenes and given us more caricature.’
    • ‘If you totally deep-six the friendship, he will figure everything out - if he hasn't already.’
    • ‘The fear that they would put audiences into narcoleptic slumber is probably why proposals for a TV channel to cover events at the world organization are often raised only to be deep-sixed.’
    • ‘I also deep-sixed a few sites whose content had taken an nosedive in the past two years.’
    • ‘These are just some of the tools and techniques we need to explore and evaluate before deep-sixing search.’
    • ‘It's time to deep-six ill-conceived ideas like this and relegate those who propose them to the dust bin of history.’
    • ‘Well a big chunk of the famed New York subway system is getting deep-sixed, literally.’
    • ‘To keep them quiet, they'd have to deep-six everybody who took part.’
    • ‘The bean counters deep-six one of your equipment purchase orders because they say it's too expensive.’
    bury, lay to rest, consign to the grave, entomb, inurn
    View synonyms

Origin

1920s (as the deep six ‘the grave’): perhaps from the custom of burial at sea at a depth of six fathoms.

Pronunciation

deep-six

/ˈdēp ˈˌsiks//ˈdip ˈˌsɪks/