walking
n.— «Tournament paintball guns are semi-automatic. Players tend to shoot using a method called “walking,” in which they push the trigger by quickly alternating between their middle and index fingers. If done properly, this will provide a steady stream of fire of about 20 balls per second.» —“Father and son team triumph at paintball tourney” by David Levine News-Times (Danbury, Conn.) Aug. 20, 2005. (source: Double-Tongued Dictionary)
Further reading
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There are eight major planets, but more than a million minor ones, including asteroids. If you discover one, you get the honor of naming it. The Dictionary of Minor Planet Names includes minor planets named for rock bands, jazz musicians, poets, and...