Wikipedia defines it as : An ad hominem argument, also known as argumentum ad hominem (Latin: “argument to the man”, “argument against the man”) consists of replying to an argument or factual claim by attacking or appealing to a characteristic or belief of the source making the argument or claim, rather than by addressing the substance of the argument or producing evidence against the claim. The process of proving or disproving the claim is thereby subverted, and the argumentum ad hominem works to change the subject.

But in this particular case, that terse and proper definition doesn’t do justice to the hilarity of some of the hate I’ve received :

The Euphemist

Speaking as a woman who is currently 9 months pregnant and enduring physical challenges you cannot even imagine, I have many possible responses to what you’ve said about pregnancy and estrogen. However, since nearly all of them use obscenities or blasphemies, I shall refrain.

At : Isis the Scientist blog

The I-don’t-agree-with-you-on-purely-subjective-issues-and-therefore-must-insult-you form :

I wrote : “that is her biological function”

They wrote : What the fuck are you smoking, asshole?

I wrote : “ I think it would be much more constructive for women to acknowledge the special treatment, accept and utilize the privilege rather than demand it as a right.”

They wrote :

Nash, please give me some of that cheap weed that you are smoking. You have no motherfucking clue what you are talking about. 6-8 weeks of maternity leave is a privilege?!? Hahahahahaahaaaa! Let me tell you how I’d love to pass this “privilege” on to my husband any day of the week. I am astounded by the sheer motherfucking ignorance of what you say.

At : Isis the Scientist blog

The Confessor-in-Denial

Strangely, you seem to be attempting to convince me of something by rational argument against my throw-away reaction. What?

At : Twitter

The I-am-asking-to-be-pwned category

Where the hell did you get the news that Hindi is not official National Language? Its seems that you did not get your primary studies in India or may not very well aware of Indian constitution.
Please DON’T SPREAD MISCONCEPTION AMONG INDIANS.

At : Jai Hind Blog

And I am quite sure there will be more to come. Don’t hesitate to post your own experiences in the comments.