big cheese wheel イディオム
a big wheel
a person with power, a big shot Bing has been acting like a big wheel since he got promoted.
a fifth wheel
a useless object, an unnecessary device The team already had two guards, so I felt like a fifth wheel.
as useless as a fifth wheel
not useful, not needed, redundant, (four wheels are sufficient) I sat there watching the four of them play bridge, and feeling as useless as a fifth wheel.
at the wheel
driving a car, steering a car or truck Who was at the wheel when the car went off the road?
big gun/cheese/wheel/wig
an important person, a leader The new director was a big wheel in his previous company but is not so important now.
big wheel
(See a big wheel)
fifth wheel
(See a fifth wheel)
hell-on-wheels
a short-tempered, nagging or crabby person She is hell-on-wheels in the morning so you should be careful of her.
put your shoulder to the wheel
begin to work If you want a share of the profits, put your shoulder to the wheel.
set of wheels
vehicle, car, truck, wheels The Ford needs a lot of repairs. I need a new set of wheels.