Fisherman stunned after reeling in 11-pound mystery critter

It was the belle of the slime-ball.

A fisherman — who happens to be a woman — elicited eeews and aaahs online after catching a mondo 11-pound sea slug off the coast of South Korea, which she captured in a video with 20 million views online.

“We have never seen such a huge one,” Tatiana Lyu, the angler who bagged the mammoth mollusk last month, told Jam Press.

She and her crew had reportedly sunk a bait bag and were reeling it in when they noticed the supersize slimebag clinging to the end of the line.

In the footage, the team is seen pulling in the line with the gargantuan gastropod hanging on, causing bystanders to shriek in surprise like something out of a sci-fi thriller.

The peculiar quarry made waves online with one viewer likening it to “whale vomit.”

“That looks nasty and slimy. Barf,” exclaimed another, while a third wrote, “WTF is that?”

“You just KNOW they’re gonna eat it!” fretted another.

Thankfully, the sea slug was released unharmed to the ocean.

The species of slug is unclear, although many guessed it was type a of sea hare, a species of marine snail with an internal shell that resides in shallow water and feeds on seaweed.

The largest of the species — and largest gastropod on Earth — is the California black sea hare, which has been known to grow over 3 feet long and weigh almost 30 pounds.

Speaking of Martian-looking denizens of the deep, a Russian fisherman made a splash in February after sharing footage of a bizarre, bulbous sea creature that viewers have compared to an “alien.”

The Lovecraftian critter was identified as a smooth lumpsucker, a species of marine ray-finned fish that grows to over a foot long and resides in the depths.

Beachcombers in Oregon were freaked out in May after stumbling across a toothsome sea monster known as a Longnose Lancetfish due to its spearlike body.