A giant yo-yo usually about 5 inches across that can leave the string. Some beleave it is what happened when a drunk yo-yo and a horny pair of devil sticks got together. Many people who have never done it before think it's simple or will tell you to do things that are imposible.
Someone who considers given facts and comes up with a possible explanation is called a theorist.
Theorists observe various [phenomena] and use reasoning to come up with practical ideas that should be proven.
Hair that is very stiff or very fine, thick, coarse, and soooo crazy that it takes FOREVER to manage. But when you have horsehair you have A LOT of it meaning you can't go bald!