The term "wheeler" can refer to several different meanings depending on context.
1) In a general sense, it could be used as a noun to describe someone who operates or drives a wheeled vehicle such as a bicycle, car, truck, etc. For example: "He's an excellent driver and always keeps his cool while driving."
2) It can also refer to a type of horse-drawn carriage that has large wheels, typically used for transportation in the 19th century. For instance: "The family would often take rides in their wheeler on weekends."
3) In business or finance contexts, it could mean someone who trades stocks frequently and aggressively to make short-term profits. An example sentence using this meaning of the word is: “He’s a real wheeler-dealer when it comes to investing.”