What's a hog?
Well, it depends where it is.
In Britain a hog is a domesticated male pig weighing over 102 kilograms (odd, those extra two kilograms, aren't they).
photo by Steven Lek
In America a hog can be any sort of a pig at all - or a large and powerful motorbike
In Australia and New Zealand, and some rural parts of Britain, a hog is a sheep (yes, a sheep!) as long as it's under a year old and has not been sheared (a hogg, with two g s, however, is a sheep before its second shearing).
I'm not sure whether these are hogs - or hoggs - but they're on Hogg Hill, England. Photo by Ronald G Nash
But of course everywhere, and very easily spotted, there are human hogs: greedy, selfish, and probably not too careful about their personal hygiene.
By Source, Fair use, https://en.wikipedia.org/w/index.php?curid=27803483
Yes, there are hogs all over the place: even if you're shipwrecked and haven't the food to make a hog of yourself then you may still have the sort of hog that's a brush for scraping a ship's bottom (the hog of the ship itself is the amount the ship's keel droops at the ends).
Lastly, a hog is a beam in a building that goes upwards in the middle, like a hog's back.
There: hog. Nice easy spot, I should think. And if it's not, I can only suggest laying your hands on a couple of doughnuts and a mirror.
Spot the Frippet: hog. This word is Celtic. The Old English form was hogg, and the Cornish is hoch.