I don't really believe that there is a term used for a person who excels in dancing, a person that excels in dancing is simply someone that is good at it.
Yes, "champ" is a common noun as it refers to a champion or someone who excels in a particular field, rather than a specific individual. It can be used to describe any person who achieves victory or distinction in a competition. However, it is often used informally and can also serve as a term of endearment.
The term "obese" is used to describe a person who is very overweight.
Maiko literally mean "dancing child" it's the term used to describe apprentice Geisha
The slang term is "bookworm."
PowerPoint's, excels (spreadsheets), and word documents
anestitition
Usually the term 'in the doghouse' is used when someone has angered or annoyed another person. The person who is in trouble is now in the doghouse until they apologize.
Pre-owned Hyundai Excels can be purchased from a variety of places. There are listings for used Hyundai Excels in Auto Trader and Cars. It is also possible to find used Hyundai Excel models at local car dealerships.
Usually english. This breed of horse excels at dressage.
The term used for a person who is strongly committed to a party or a group is usually referred to as a "loyalist" or a "partisan."
The term is an "autobiography."
The term is 'intestate'.