topplacker
Topplacker is a term sometimes used in informal contexts to describe an individual who excels in a particular field or activity, often to the point of being considered a leader or expert. The word itself is a portmanteau, combining "top" and "lacker," the latter referring to someone who applies lacquer. In its metaphorical sense, the "lacker" is someone who applies the finishing touches, the highest quality polish, to a subject, thereby signifying their mastery and excellence.
The concept of a topplacker implies not just a high level of skill but also a certain