A weight point is Oberin's method of measuring weight. Each character, depending on their class and class level can carry a certain amount of weight, with Clerics carrying the least, so not ever being designated-looters, unless of stuff they already-have (the initial item in a slot weighs more than the consecutive, single-items, if stackable as the same-type). Each item has its own amount of weight points (so that varies, then). The formula to figure out your character's maximum weight is Strength X 18.