DIS, v. (or “diss”) As Ambrose Bierce defined the slang of his day, “the grunt of the human hog.” One might add that while it would be easy to dismiss, disparage, disavow, disdain, disregard, discourage, or disrespect those who employ this disreputable, disgraceful, disgusting, disturbing usage, it serves those who grunt it quite well in that it allows them to discard the dismal, dismaying, disagreeable task of distinguishing between any number of distressingly dissimilar terms.
* * *
–from the revised and expanded edition of The American Heretic’s Dictionary, the best modern successor to Ambrose Bierce’s Devil’s Dictionary
Sharp and Pointed 