Citations:trump

Noise made by an elephant

 * 2012, Konstantin Nossov, War Elephants
 * A young elephant, still a calf, was hit hard on the head with a spear and rushed back, trumping piteously.
 * 2015, Robert J. Evans, The Forest Monster of Oz
 * "Okay, everyone!" shouted Elephant as he raised his trunk high in the air and let out a great trump which just about blew everyone off his back. He then proceeded to waddle down the road making trumping sounds that sounded suspiciously like a trombone playing the bass part to When the Saints go marching in.
 * 1998, Nobuaki Tochigi, "Reeling with words: music and intoxication in Ciaran Carson's alphabetical sequences", The Harp, vol. 13, pp. 26-33
 * Just now, I heard an elephant trump some two miles down the road from Belfast Zoo,
 * 2010, Ritesh Joshi, "How social are Asian elephants Elephas maximus?", New York Science Journal vol. 3, iss. 1
 * Elephants trumped loudly whenever they are excited or aggressive.