1. pipe down - Verb
2. pipe down - Phrase
become quiet or quieter
Source: WordNetPipe down Mr Indignation. We'll see what the viewers thought of your double standards, your indignation about me and the aplomb with which you become a lying plutocrat in your gentleman's club. George Galloway
I never say 'nagging.' I think that 'nagging' is a term that men created to get women to pipe down some. But, it's a trap that we've created. We created several terms for women to back you down. Nagging means to stop asking me questions, then we get away with more. I think it's a term men created. Steve Harvey
The audience fell silent when the speaker entered Source: Internet
One of the boys reportedly jammed a PVC pipe down the crocodile’s throat. Source: Internet
In this process, the rain water is centralised through a pipe down to the tanks. Source: Internet
The city council will vote at its next meeting whether to go with that plan or whether to put a new, 24-inch pipe down the center of Pennsylvania Avenue to carry storm water (sanitary sewer would use the existing pipe). Source: Internet