going into a religious based seizure that was seemingly induced by some kind of preacher, but is really the persons own doing. check out benny hinn on youtube, or that movie jesus camp.
The term can also be used when someone is buggin' out over something trivial
"what kind of church is this? pastor is knockin people out, givin everyone jesus seizures"
or
"damn dude, frank is buggin out about his girl. he's straight up havin a jesus seizure, lettin that holy spirit out"
When one is attempting to kills a noob in a game such as Call of Duty, and the noob freaks out and randomly knifes/shoots in the air, in most cases ultimately achieving nothing and dying. However, in some bullshit cases, the noob somehow kills you by some incredibly feat of God.
"Haha, what an idiot. I got a free kill cause the stupid had a noob seizure."