King Arthuring someone is to stab someone in the face with a penis useing the penis as excalaber.Usally a prank or insult
Timmy: Alex is a HO-MO Alex:Hey Timmy I wouldnt go to sleep tonight because im gunna KING ARTHUR you so good!Timmy:Dude not cool!
by Jlynnb*tch July 25, 2009