cancelled out

When he called Obama an "Uncle Tom" and wouldn't apologize, Ralph Nader effectively cancelled out his own credibility.

The conviction, however, was so strong that the repast was cancelled out of hand.

He was a philosophical person, and the fact he was still alive cancelled out the drink and its result.

The new and the old cancelled out; his daughters became quasi-independent dependents—which is absurd.

Love—nay, even the impress of where I thought love had lain within me, but it was not so—is cancelled out, and Mercy with it.