The Collaborative International Dictionary
Blackguard \Black"guard`\, v. t. [imp. & p. p. Blackguarded;
p. pr. & vb. n. Blackguarding.]
To revile or abuse in scurrilous language.
--Southey.
Wiktionary
vb. (en-past of: blackguard)
Usage examples of "blackguarded".
The butcher, whom we decided NOT to arrange with, called and blackguarded me in the most uncalled-for manner.
She had listened with calm contempt while these women had underrated the Confederate Army, blackguarded Jeff Davis and accused Southerners of murder and torture of their slaves.
I can't tell you the number of times he's sworn he'd never have Gavin to his house again, and blackguarded him to anyone he could get to listen to his grievances.
He blackguarded Crixus some more, and threw in a few withering remarks about my own shortcomings, and there I left him, with a promise to return later and report any developments.