MechaJesus Share definition Flag Used to describe an object or person of undescribable power. Holy shit jawn, you see that boxer. He beat the shit out of that guy like he was MechaJesus. MechaJesus by Junpei Takayama October 9, 2004 0 0 Get merch Get the MechaJesus mug. Buy Now — $32.95 See more merch