An expecting couple got an unexpected surprise when their newborn weighed a whopping four pounds more than expected.

Waldo James Mysterious Dwyer was born by C-section on Monday weighing 13 pounds, 8 ounces, according to ABC affiliate WPVI.

"We knew he was big but not that big," Danielle Dwyer told WPVI, explaining that doctors guessed Waldo would weigh about 9 pounds, 10 ounces. "I'm thankful he was healthy and well."

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The median birth weight for boys is just less than 8 pounds, according to the U.S. Centers for Disease Control and Prevention. But baby Waldo was two weeks past due, WPVI reported.

"He had a little extra time in there to cook, to grow," said Dwyer.

Waldo James Mysterious Dwyer was born by C-section on Monday, April 14, 2014 weighing 13 pounds, 8 ounces, according to ABC affiliate WPVI.

"There were so many fat rolls you couldn't tell where his armpits were," said Waldo's dad, Brian Dwyer, who also explained the origin of Waldo's unusual middle name. "He was almost 14 pounds, under a blood red lunar eclipse. I don't know what any of that means but it seems like the first few sentences of a tall tale."

"If there is one child who could own that name Waldo James Mysterious, I think that it's him."