A nicer way of saying or typing the word, "Hell".
It is similar to the phrases, "H-E-Double-Toothpicks" and, "H-E-Double-Hockey-Sticks".
Why the H-E-Double-Bendy-Straws did you break those light bulbs in Mikey's bed?!?
Mikey never did anything to you to piss you off in that manner.