I'm 6' 3" and fat, I have a "gravy-dipper" moustache (which goes into "points" at re-enactment musters). On one camp site, I woke-up a little late, I was half out of a flea-bag, when one of my mates said "you look like a bloody walrus" and threw a sardine at me (I know, eating sardines at breakfast - barbaric!). So, Walrus, it's not a name, it's a description.

Walrus