look up any word, like cleveland steamer:
 
3.
Relating to causing serious damage, in brutal fashion.
"If you don't hand over the bling-bling, I'm gonna have to medieval on you, biznatch!"
by Minstrel March 04, 2003
 
1.
Completely cold-blooded and enraged, inflicting serious pain and death. Popularized by Vnig Rhames' character, Marsellus Wallace, in "Pulp Fiction."
"You hear me talking, hill-billy boy? I ain't through with you by a damn sight. I'ma get medieval on yer ass."
by Dain December 09, 2004
 
2.
1. A period of time most often associated with the dark ages, particularly from the 11th to the 15th centuries.
2. An agressive action, usually in retaliation of an earlier action.
"knights did a lot of crusading in medieval times."
"I'm gonna go medieval on your ass!"
by Brian November 03, 2004
 
4.
Brutal, agressive, and short tempered. Using high levels of testosterone and adrenaline.
If you dont stop fucking with every damn thing in my room...Im gonna go medieval on your ass!
by stevo April 02, 2004
 
5.
Totally stoned and completley out of your fucking head
Dude after cheezing I was so fucking lost in medieval times
by Grandpa Stiff March 27, 2008