Crabolocaust 

When a group of shore crabs get smashed the fuck up (aka 'tinnied') with a rolling pin.

"Fuck me John boy, if you're gonna eat them crabs you need to tinny them. They look fackin' tasty! It's a bloody crabolocaust, m8!"

Crabolocaust by Jew Yoghurt Slinger March 28, 2015