When you open up the oven to check on your food and get blasted with the hot air from inside.
Like a slap in the face from the balls of the devil.
"Careful when you open the oven! You'll get the Devil's Balls!"

"Ah!"
"What happened?"
"Just got hit with the Devil's Balls while looking at the pizzas."
by tenkunsfw November 8, 2019
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