A quiet remark the whole house will hear

Wiktionary Word definitions in Wiktionary
n. (context theater English) A line that is performed on stage as if it were whispered, but is spoken loud enough that the audience can hear. vb. (context theater English) To perform a stage whisper.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Stage \Stage\ (st[=a]j), n. [OF. estage, F. ['e]tage, (assumed) LL. staticum, from L. stare to stand. See Stand , and cf. Static .] A floor or story of a house. [Obs.] --Wyclif. An elevated platform on which an orator may speak, a play be performed, ...

Wikipedia Word definitions in Wikipedia
Stage Whisper is a double album by Charlotte Gainsbourg , released on December 13, 2011.

WordNet Word definitions in WordNet
n. a loud whisper that can be overheard; on the stage it is heard by the audience but it supposed to be inaudible to the rest of the cast

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ He dropped to a conspiratorial stage whisper with Margaret: Where is she anyway?