One definition: Killing the legitimate usage of the mind's application to reality by inferring that such usage implies the user of the logic is a bigot, thereby ensuring that the sanctum of that which should go unexamined remains free from the impurity of intellectual reasoning. If, however, the conclusions reached appeal to the accuser of bigotry, then he welcomes such usage, and is no doubt a champion of Reason. The infidel/bigot accusation is only brought into play when the conclusions reached are disagreeable to his static, unexamined worldview. Thus Salman Rushdie's fatwah for airing his opinions, or in a less obvious variation, GWB's "You're either with us, or you're with the terrorists."
The protectors of strangulatory systems of thought upon makind do not relinquish easily the straitjacket upon the natural liberty of the mind. As Jesus said, "I came that they might have life and might have it abundantly." The enemy of truth wishes that man may have mind stultifying obedience, and have it abundantly.