A white person or group throwing their weight around, or abusing their authority. All the while oblivious to the implications of it when their bully group is all white and they're making decisions that adversely affect minorities.
N.B.: The group doesn't technically have to be all white, but the few minorities around them should be of the Clarence Thomas variety where they say nothing in order to protect their own position.
The Mighty Whitey and his friends didn't think twice before deciding to cut the budget for Black History month activities.