By AKC standards Yorkies will be between 5-7 pounds. We've found our average size of Yorkies to be between 4.5 - 5 pounds. This doesn't mean that your dog can't be a little less or a little more. While a lot about your Yorkie is influenced by it's parents there is also a lot you can do.
A doofus is a dummy or a simpleton â in other words, a goofy person who's not very smart. You might decide not to buy a top hat and suspenders after trying them on, looking in a mirror, and realizing you look like a doofus. Use the informal doofus when someone acts with stupidity or does something ridiculous and unthinking.
A muggle is a poor old bloke who has not been blessed with magical abilities. He has no ability to use magic. A mudblood, on the other hand, is like a first generation entrepreneur. He/she is the first in their family tree to have the ability to use magic. It's a derogatory term, and not to be used in the Potter World.