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1.
Synonym for "good bye". Made popular by YouTuber Tobuscus (aka TobyTurner, TobyGames)
Bless your face. Peace Off. Boop.
by Wouldn't YOU like to know? >.> March 10, 2011
 
2.
What you say to a person(s)whom you don't want to shake their hand at Mass.
(you tell to some old dirty man while shaking someone's hand)" I'm good,can't you see I'm busy,PEACE OFF!."
by RodrigoElenes August 28, 2007