- Slang. A list which even with good auditing, failed for any other reason to produce
a reliable item. (HCOB 5 Dec 62)
- if no slam occurs anywhere on a listing list with the mid ruds in for the session, that's a dead horse. (SH Spec 219, 6211C27)
- an item listed from a non-reading question will give you a dead horse (no item). (HCOB 1 Aug 68)