A boy member of a choir.
Informal A morally upright young man: "They're . . . choirboys—clean, scrubbed nothings—so there's no dramatic or psychological preparation for the explosion of killing” ( Pauline Kael).
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.