2 definitions:
1. (as stated by Wikipedia, the best source to fuck with your teachers): a
two-pair poker hand consisting of the black aces and black eights. The pair of aces and eights, along with an unknown hole card, were reportedly held by Old West folk
hero, lawman, and gunfighter Wild
Bill Hickok when he was shot and killed.
2. When an individual has some catastrophic blackmail on someone else but only chooses to use it as a last resort (loosely based off
Russia's dead hand (go look that up))
(second
definition defined here)
Person 1: Yo, how did
Mark get fired? Wasn't he a model employee?
Person 2: Yeah, but he was fucking with the wrong guy for too long, then that guy recorded him saying some of the foulest fucking shit ever, and then he showed their boss.
Person 1: Seems a little excessive.
Person 2: Well, that was his dead mans hand. He tried to resolve the situation by literally any other means, but
Mark just keep pushing his luck.
Person 1: Well, I guess that's fair.