Step on the gas (10)

I believe the answer is:
accelerate
(Other definitions for accelerate that I've seen before include "Go faster" , "snowball" , "Increase speed" , "Quicken" , "Crank up" .)
I believe the answer is:
accelerate
(Other definitions for accelerate that I've seen before include "Go faster" , "snowball" , "Increase speed" , "Quicken" , "Crank up" .)