pipe up

British  

verb

1. to commence singing or playing a musical instrument

   the band piped up

2. to speak up, esp in a shrill voice

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pipe up Idioms  

1. Speak up, as in Finally she piped up, “I think I've got the winning ticket,” or Pipe up if you want more pancakes. This term originally referred to a high, piping tone. [Mid-1800s]

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Example Sentences

Her suggestion: Pipe up and say something like, “I see you agree with a point Ana made earlier in the meeting” or, “I’d like to hear Emma finish her thought.”

From The Wall Street Journal • Apr. 4, 2018

The Unbound Team, along with snowmakers worked around the clock to get terrain park features and the Super Pipe up and running even without the early season snowfall Mammoth had in previous years.

From Time Magazine Archive

Pipe up there, golden-voiced magpie; give us one song more before you go to roost.

From Recollections of Geoffrey Hamlyn by Kingsley, Henry

"Pipe up all hands and shorten sail!" he shouted to the boatswain, then emerging from the forecastle.

From Ralph Granger's Fortunes by Brown, William Perry