pipe up

Verb

 * 1)  To speak up, especially in a robust, assertive manner; to say something loudly and suddenly.
 * 2)  To begin singing or playing musical notes on a pipe or similar wind instrument.
 * 3)  To begin to blow more vigorously.
 * 4)  To call, awaken, or summon, as with a musical instrument.
 * 1)  To begin singing or playing musical notes on a pipe or similar wind instrument.
 * 2)  To begin to blow more vigorously.
 * 3)  To call, awaken, or summon, as with a musical instrument.
 * 1)  To begin to blow more vigorously.
 * 2)  To call, awaken, or summon, as with a musical instrument.
 * 1)  To call, awaken, or summon, as with a musical instrument.