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поддать газу stresses
gen.	gun the engine (Дмитрий_Р)
amer.	put one's foot to the floor (Featus)
auto.	step on the gas (One sweet dream // Pick up the bags, get in the limousine // Soon we'll be away from here // Step on the gas and wipe that tear away genius.com Aiduza)
idiom.	give it some welly (Также "give it some wellie". Считается, что wellie/welly – сокращение от "Wellington boots". Цитата: Having put the engineer at ease, I think, it was time to give the car some welly and I was amazed how effortlessly it rocketed up to, er, high speeds, then lost speed almost as rapidly when the powerful brakes came into use. CopperKettle); give it some wellie (Также "give it some welly". Считается, что wellie/welly – сокращение от "Wellington boots". Цитата: Having put the engineer at ease, I think, it was time to give the car some welly and I was amazed how effortlessly it rocketed up to, er, high speeds, then lost speed almost as rapidly when the powerful brakes came into use. CopperKettle); put pedal to the metal (sankozh)
"поддать газу"
auto.	turn up the wick (k11fang)