To denounce or criticize severely. Damn, damn it, and dammit are used by some people to express anger or impatience. To declare (something) to be bad, unfit, invalid, or illegal.

Idioms damn with faint praise, to praise in such a way that the result is to condemn: The letter of recommendation said, she does her work as well as can be expected,'' thus damning her with faint … Damn, that tastes good. I don't brag very often, but damn, i'm going to brag about this!