deep-six

/ˌdip ˌˈsɪks/

Definitions of deep-six

1. verb

   throw from a boat
   synonyms: throw overboard

   type of:

   throw

   propel through the air
2. verb

   toss out; get rid of
   “deep-six these old souvenirs!”

   synonyms: give it the deep six

   type of:

   cast aside, cast away, cast out, chuck out, discard, dispose, fling, put away, throw away, throw out, toss, toss away, toss out

   throw or cast away