Definition of deep-six in English:

deep-six

verb

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

    ‘someone had deliberately deep-sixed evidence’
    • ‘A loss would deep-six his career and ruin his self-image.’
    • ‘Well a big chunk of the famed New York subway system is getting deep-sixed, literally.’
    • ‘Among other things, the legislation deep-sixed restrictions that had forbidden banks from owning insurance companies and brokerages, and vice versa.’
    • ‘These are just some of the tools and techniques we need to explore and evaluate before deep-sixing search.’
    • ‘Likewise, a promise to deep-six an auto-tax hike could also fall by the wayside.’
    • ‘If you totally deep-six the friendship, he will figure everything out - if he hasn't already.’
    • ‘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.’
    • ‘The old notion of stretching first, when your muscles are cold, was deep-sixed long ago.’
    • ‘It's time to deep-six ill-conceived ideas like this and relegate those who propose them to the dust bin of history.’
    • ‘Frankie and Johnny was deep-sixed by an unlikable heroine and a rather boring screenplay.’
    • ‘To keep them quiet, they'd have to deep-six everybody who took part.’
    • ‘The government clearly had no use for the commission's 1979 report and deep-sixed it on arrival.’
    • ‘What might have been an endurable serial killer flick is deep-sixed by superfluous scenes and atrocious writing.’
    • ‘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.’
    • ‘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.’
    • ‘I also deep-sixed a few sites whose content had taken an nosedive in the past two years.’
    • ‘Robbins should have deep-sixed the sentimental scenes and given us more caricature.’
    • ‘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.’
    • ‘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