let rip

let rip (third-person singular simple present lets rip, present participle letting rip, simple past and past participle let rip)

1. (transitive, informal) To unleash, let loose, uncork; to allow (something) to happen or proceed without restraint.

   When she heard the news, she let rip a tirade heard throughout the office.

   Ok, it's all clear. Let 'er rip.

   He let rip a fart that emptied the elevator at the next floor.

2. (intransitive, usually with a prepositional phrase) To utter or release without restraint.

   She let rip with a tirade everyone heard.

   She let rip about Mary's flirting with Lizzie's boyfriend.

3. (intransitive, slang) To fart.
   • 2012, Dougie Brimson, Art of Fart, →ISBN:

     I would also urge you never to let rip within 50 metres of your mother-in-law

• open the floodgates

• “let rip”, in OneLook Dictionary Search.

• Pirtle, Tipler, prelit, tripel, triple