Dihydrogen monoxide

Overview
Dihydrogen monoxide is the chemical name for water (H2O). This name is almost never actually used in chemistry but is often found in satires of informational campaigns intended to show the dangers of other chemicals, with the goal of highlighting ways in which such campaigns may be misleading or inaccurate.

Reference

 * Dihydrogen Monoxide Research Division: an entire web site satirically posing as information about the dangers of dihydrogen monoxide
 * Dihydrogen Monoxide Research Division: an entire web site satirically posing as information about the dangers of dihydrogen monoxide

News

 * 2013-04-05 "Dihydrogen monoxide" joke gets DJs suspended