Like a butcher; characterised by slaughter, savage.(adjective)
Like a butcher; cruelly, brutally.(adverb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "butcherly" in a sentence
"I think thou couldst not expect I should frame lies for thee; and after all, John, in my broken recollections of that night, I do bethink me of a butcherly looking mute, with a curtal axe, much like such a one as may have done yonder night job."
"Will they remove the only motive which could bring me to the butcherly spectacle of their combat?"
"After the murder of that little child, it seems to me one can never look with anything but horror upon the butcherly Herod who ordered it."