Counterclaim

From SA Mafia Wiki

A Counterclaim is a Roleclaim of a role that has already been claimed, often with the intention of casting suspicion on the initial claimer.

For example, in a C9 game, if a player claims Cop on Day 1, and another player claims Cop on Day 2, at least one is necessarily lying because there is a maximum of 1 cop in the game. The counterclaimer is generally either Mafia trying to discredit the Day 1 claim, or the real cop outing the lie of Day 1's claimer.