1. noun Death or burial at sea. Likely a reference to six fathoms of water being the standard depth at which to bury bodies at sea. Usually used in the forms "get the deep six" or "give someone the deep six." We were all afraid we'd be getting the deep six when our boat was caught in that huge storm. I'm been a sailor all my life, so when my time comes, please give me the deep six out in the Pacific.
2. noun Death in general; the grave. A reference to the standard six-foot depth of a grave. I'm starting to fear that our key witness may have been given the deep six at the hands of the mob. We are all heading for the deep six eventually, so you may as well make the most of the time you're given.
3. noun By extension, a rejection, disposal, or elimination (of someone or something. The studio decided to give the film the deep six after its budget began getting out of hand. The president's chief of staff got the deep six after it came to light that she had lied about her qualifications. After nearly 30 years of service, fabled warship is finally getting the deep six.
4. verb To reject, dispose of, or eliminate (someone or something). We're going to have to deep six this whole thing if it doesn't start coming together soon. The director just announced that we're deep sixing our moonshots program.
deep-six someone or something
Sl. to get rid of someone or something; to dispose of someone or something. (Refers originally to burying someone or something six feet deep, the standard depth of a grave.) Take this horrible food out and deep-six it. That guy is a pain. Deep-six him so the cops will never find him.
1. Also, give or get the deep six . Burial at sea. For example, When the torpedo hit our boat, I was sure we'd get the deep six. This expression alludes to the customary six-foot depth of most graves. [Early 1900s]
2. Disposal or rejection of something, as in They gave the new plan the deep six. This usage comes from nautical slang of the 1920s for tossing something overboard (to its watery grave; see def. 1). It was transferred to more general kinds of disposal in the 1940s and gave rise to the verb to deep-six, for "toss overboard" or "discard."
1. tv. to jettison something, including a corpse, from a ship at sea. (Usually deep-six as a verb.) They deep-sixed the body of the first mate, who had died of the shakes.
2. and the deep six n. burial at sea. (Always with the in this sense.) I think I’d want the deep six, but I’ll probably kick off on dry land.
3. tv. to kill or dispose of someone. (Underworld. Usually deep-six as a verb.) The thugs tried to deep-six the witness, but failed.
4. tv. to throw something away. (Usually deep-six as a verb.) Take this old thing out and deep-six it.
5. and the deep six n. a grave. (Always with the in this sense. Graves are usually six feet deep.) When you know the deep six is at the end of the line no matter who you are, it makes you take life less seriously.
To abandon, reject, or otherwise get rid of. This slangy term dates from the mid-1900s and originated in the navy, where it meant throwing something or someone overboard. The “six” refers to the six-foot nautical fathom, the standard unit of measurement for sea depth. It soon was adopted into civilian language, as in an editorial about Massachusetts Governor Mitt Romney’s chances for national office: “I’d deep-six the joke [he tells] about the wily old farmer who pretends he’s feeding an alligator in order to scare some naked coeds out of a swimming hole” (Scot Lehigh, Boston Globe, March 11, 2005).