It is "a silver trumpet muffled in silk." Who is describing what? (Question courtesy of Jack Shafer)

(The penis-free zone is invoked on a voluntary basis, without meddlesome government regulation, much as other institutions so effectively police themselves.—Ed.)

Send your answer by 6 p.m. ET Thursday to newsquiz@slate.com.

Monday's Question (No. 433)—"Photo Op":

Photographs taken last week, show Culann Patera doing something violent yet strangely beautiful, probably brought on by the cumulative effects of stress. Scientists attributed the particularly vibrant colors on display to some unusual chemical reactions, but nobody was about to get close enough to check. What was Culann Patera doing? (Question courtesy of Greg Diamond.)

"Della Reese's hair."—Larry Amoros

"A darn good imitation of Donna Hanover."—Dawn Shurmaitis (Barry Johnson had a similar answer.)

"Slicing the throat of the Lucky Charms leprechaun."—Daniel Maurice Donoso

"The Miss Universe talent competition gets weirder every year."—Steven Davis

"Choking to death. My God, why won't somebody help her?"—Tom Tegtmeyer