Gavin... Heh.
That reminds me of a funny story - if anyone wants to see a great example of Wikipedia asshattery, look up the fights surrounding one guy's (Mike Sparks') attempt to convince the world that the M113 APC is colloquially called the "Gavin".
You see, it's all part of his brilliant scheme to replace virtually the whole US Army vehicle inventory (short of perhaps main battle tanks) with the M113s, possibly dismantling the USMC (which he was kicked out of) along the way.
The Wikipedia pages dealing with the subject have whole sections filled with Sparks talking to himself, praising his own brilliant ideas, and posting under multiple aliases to make it look like other people are agreeing with him.
Last I saw of him, he was putting stuff up at a site specializing in pictures of military armored vehicles crewed by furries and posting rants to accompany the pictures. It's amazing what one idiot with internet access can manage.
(oh, and just for the record - lest I inadvertantly help spread the meme - the M113 never had a nickname, either official or not)