its called a hippo coz it looks abit like one.
its somes time referred to as a gaylander because they make you so happy (gay) when you drive them.
Freebie is a shortened endearing name derived from freelander
a few other names for other landys I'm aware of;
defender - deepender, biscuit tin, tratter.
disco 1,2 - rot box, murders wagon.
P38 - utter crap
evoque - ewok