Well I didn't think it up, it's a real one. I found it on that website that the other fellow (was it Tadportly?) linked to.
For that reason I probably won't use it, as I want mine to be fictional rather than named after real tanks. I'm now thinking Bully Beef for the main course (male tank) and Plum Duff for pudding (the female tank, when I get one).
Bully Beef sounds so typically English, that's why I like it, and it keeps to the food theme that seems to have developed.