Just medium evil. Nowhere near the calibre of evil suggested by Marcellus Wallace in The Gold Watch, _Pulp Fiction_, 1994, when he said to Zed and what remained of Maynard, I'm gonna get medieval on your ass. Torturing them, perhaps even skinning them alive, was not out of the question. Medievil could involve medium calibre, but not high calibre torture. Example: Chris is probably only medievil, but he's only in his 30s. With seasoning he could get really bad--if he lives long enough.
MEDIEVIL
Meaning of MEDIEVIL in English
Slang English vocab. Английский сленговый словарь. 2012