let it rip

let it rip

also let her rip
1. to make a vehicle or machine move very fast He would get up early Sunday mornings, fire up the lawnmower, and let her rip.
Usage notes: the pronoun her is often used to refer to a machine
2. to do something with energy and enthusiasm Hendrix would walk into a recording studio, turn on his amp, and let it rip while the tape recorder rolled.
See also: let, rip

let it rip

Also, let her rip. Go ahead, proceed unchecked. For example, Once you get the tractor started, let it rip. The use of her in the variant comes from a tradition of referring to vehicles as feminine. [Mid-1800s]
See also: let, rip
References in periodicals archive ?
Smith, the pediatrician, knows that age limits sound a little hard core for some youngsters who just want to let it rip, but said it's a guideline to use in making choices.
With goggles on, the boys did a NASA-like countdown and let it rip to the exploding applause of bystanders as the projectile landed just inches from the target's center.
Bening really gets a chance to let it rip here, though, as Claire is pushed to the outer edges of stress and sanity, then forced to call up all the seductiveness she can muster when finally confronting her tormentor in the flesh.