Neither distance nor visibility of the cub affects the number of sound elements composing the call. The physical structure of the call suggests its source potentially can be localized with regard to both direction and distance.doi:10.1111/j.1469-7998.1976.tb04686.xC. Wemmer...
A noisy puffing or explosive sound, such as one made by a locomotive. [Imitative.] chuff3 (chŭf) n.Chiefly British Vulgar Slang 1.The buttocks. 2.The anus. American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing ...