What does renig mean?

Answer 1

To "renig" is to go back on something.

In cards renigging often occurs when, for example, the players are forced to follow suit such as spades, and a player follows with a heart, but another spade leads, and the same player who played the heart plays a spade. In pinochle, it is penalized by forfeiture of the hand, and either you going set or your opponents automatically making their bid. In hearts, the player who renigs is forced to take 26 points, while the other players have no change to their score.