Definitions of Ad Hominem on the Web:
* appealing to feelings or prejudices rather than intellect
ww2.aps.edu/users/apsedumain/CurriculumInstruction/glossary.htm
* A fallacy that attacks the person rather than dealing with the real issue in dispute.
highered.mcgraw-hill.com/sites/007256296x/student_view0/glossary.html
* attacking your opponent personally rather than her/his argument. Ad hominem is fallacious argumentation.
www.tmsdebate.org/main/forensics/glossary.htm
* an argument "against the man" or person. This is a device employed to attack not the issues but rather the one you are arguing with, especially on a personal level or basis. It is usually employed by those whose arguments are weak.
library.sebts.edu/smadden/cross/terms.htm
* when people can't find fault with an argument, they sometimes attack the arguer, substituting irrelevant assertions about that person's character for an analysis of the argument itself.
home.olemiss.edu/~gbrown/reserve/fallacies_and_causes.htm
You oughtn't to struggle so much in actually replying to me you know...