from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A defamatory speech or writing published to the injury of a person of dignity.
from the GNU version of the Collaborative International Dictionary of English
- A defamatory speech or writing published to the injury of a person of dignity; -- usually abbreviated scan. mag.
from The Century Dictionary and Cyclopedia
- n. In law, the offense of speaking slanderously or in defamation of high personages (magnates) of the realm, as temporal and spiritual peers, judges, and other high officers. Actions on this plea are obsolete. Abbreviated scan. mag.
Latin, scandal of magnates. (Wiktionary)
Shaw is simply one who is guilty of scandalum magnatum habitually, a professional criminal in that department.