You totally destroyed me.

You have successfully and totally annihilated my argument.

You have propitiously and equally refuted my entire argument. My argument vis a vis your argument is very weak, therefore as a figure of speech, you have destroyed it.

This message is to inform you that the user writing the message has an opinion, that you have unconditionally and uniformly countered his argument. In this argumentation, the argument constituted by you is, vis a vis the user's argument, assailable and therefore as a stylistic device, the user informs you that you have marvelously and exceptionally obliterated his argument.