Step on it!
Meaning: to drive faster or to hurry
Example: As the ambulance left for the hospital with my sick father in the back, I asked the ambulance driver to step on it. I wanted him to waste no time getting to the hospital.
See also: get a move on and shake a leg
Выучи грамотный разговорный английский до уверенного владения всего за 9 месяцев по системе естественного усвоения иностранных языков. Жми!
Example: As the ambulance left for the hospital with my sick father in the back, I asked the ambulance driver to step on it. I wanted him to waste no time getting to the hospital.
See also: get a move on and shake a leg