MACKEREL, DEAD AS A

(slang) absolutely lifeless. —9th ACC Volume 1 Approved Glossary, —ESTO - Handling Personnel, Part I Approved Glossary, —PDC Volume 4 Approved Glossary, —SHSBC Binder 1 Glossary, —SHSBC Binder 19 Approved Glossary

(slang) absolutely lifeless.