WordReference Random House Unabridged Dictionary of American English © 2026
deep′ six′, [Slang.]
deep-six (dēp′siks′),USA pronunciation v.t. [Slang.]
- Slang Termsburial or discarding at sea.
- Slang Termscomplete rejection or ruin.
- 1940–45
deep-six (dēp′siks′),USA pronunciation v.t. [Slang.]
- Slang Termsto throw overboard.
- Slang Termsto get rid of;
abandon;
discard. - Slang Termsto reject, negate, or ruin:The team deep-sixed the manager's attempt to call Sunday practice.
- verb, verbal use of deep six 1950–55