It's called a 'meat cleaver'
Granted, it's also been called 'Life in jail' but that's sometimes a small price to pay.
(
boris the spider,
Wed 22 Oct 2008, 21:56,
archived)
Life's Naughtystep
(
Dixipoos Bye Bye Blackbird,
Wed 22 Oct 2008, 21:57,
archived)