Words used in the beginning and ends of a phrase to express surprise. Originated from the popular comic book series 'batman' his faithful sidekick Robin used to say 'Holy______Batman!' perhaps when he saw a villain. Today it is commonly used for the same reason, to express shock or surprise. It is used simply by stating what you see between holy and batman, this shows that this is shocking.
Holy fire Batman! (fire in the house)
Holy wet cat in a tree Batman! (wet cat in a tree)
Holy you're wearing my snuggie Batman! (you wearing snuggie)
Holy rejection Batman! (rejected)
Holy Batman
if your siblings are nearby and you don't want them-ahem-your parents to hear you cuss, i got a perfect solution for you! This is perfect because it's dirty and it's not! What DO YOU meAn? You're siblings won't suspect a THING!and If your parents hear it, they'll suspect a thing, but at least you're not saying 'holy fucking shit bitch' which doesn't even make sense and will probably make your parents think your on something
your dumb clumsy self (comment 'i' if you can relate!): 'holy banana muffins, I stubbed my toe on the side of the desk!'
your siblings: 'yummy! bananas!' (100% guaranteed they'll say this!)