Mashackering and Misguggling
Mauling and disfiguring.
“I humbly protest against mauling and disfiguring this work; against what the great Walter Scott would. I think, have called mashackering and misguggling, after the manner of Nicol Muschat (in The Heart of Midlothian), when he put an end to his wife Arlie at the spot afterwards called by his name.” —W. E. Gladstone: Nineteenth Century, November, 1885.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894