Pigs between about six weeks and a year are known as weaners...[It] seemed to be a malleable term. It's also used to describe both young boars and sows...

...as well as the meat product sometimes derived from them, cooked over the campfire and served on a bun with mustard and relish? sorry, just couldn't resist that one [cover-head-and-scuttle-hastily-for-cover-ducking-brickbats-and-old-shoes e]