give it/her the gun

give it/her the gun

To accelerate or rev an engine. The burglar leapt into the getaway car and yelled, "Give it the gun, the cops are coming!"
See also: give, gun
Farlex Dictionary of Idioms.

Give it the gun.

 and Give her the gun.
Fig. to make a motor or engine run faster; to rev up an engine. (The her is often pronounced "er.") Bill: How fast will this thing go? Bob: I'll give it the gun and see. Hurry up, driver. Give 'er the gun. I've got to get there immediately.
See also: give, gun
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

give it the gun

accelerate powerfully in a car. informal
See also: give, gun
Farlex Partner Idioms Dictionary

give it the gun

tv. to gun an engine; to rev an engine up. I gave it the gun, and it backfired.
See also: give, gun
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • give it the gun
  • give (one) the works
  • don't give (something) a second thought
  • (Can I) give you a lift?
  • all in, be
  • be all in
  • give (one's) ground
  • give ground
  • give it a burl
  • give anything (for something)