To eat the head off someone is to shout at them aggressively
see - "lose the head"
What you say does not make very much sense

"I'm all hepped up" means I'm really angry

ur gonna get emptied so bad you'll be in hospital......SON
Get out of here now, please
ur annoying me. . belfast
Go away, the quicker the better for you
do you want a slap in the mouth