IPA: /ˈwiːl.mən/
KK: /ˈwiːlˌmæn/
A person who drives a vehicle, especially in situations like a getaway or in racing.
The wheelman sped away from the scene before the police arrived.
Wheelman → It is formed from "wheel" (from Old English "hwēol", meaning a circular object that revolves) and "man" (from Old English "mann", meaning a human being). The term "wheelman" refers to a person who operates or drives a vehicle, particularly in a criminal context.
Think of a 'circular object' ('wheel') that is operated by a 'human being' ('man') — that's why a wheelman is someone who drives or operates a vehicle.