Using five antennae, the bobbit worm senses passing prey, snapping down on them with supremely muscled mouth parts, called a pharynx. It does this with such speed and strength that it can split a fish in two. And that, quite frankly, would be a merciful exit. If you survive initially, you get to find out what it’s like to be yanked into the worm’s burrow and into untold nightmares.
A Daily Mail story suggested that the bobbit worm can permanently paralyze human appendages with its bristles, though Carrera-Parra and Salazar-Vallejo question this. They say a different family of worms, the fireworms, have harpoon-shaped chaetae — bristles of sorts — that release a toxin that can cause severe skin irritation, but bobbit worms “do not have abundant chaetae and their chaetae are not used for defensive purposes, but for improving traction for crawling over the sediment or inside their galleries or tubes.”
Its definitely that thing they put in your tummy button in The Matrix