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Top Definition. dog whistle. Dog whistle is a type of strategy of communication that sends a message that the general population will take a certain meaning from, but a certain group that is in the know will take away the secret, intended message. Often involves code words.
Instructions. Q. You say that Humans can't hear the whistle, but dogs can. I hear this whistle all the time. A. The ad states that Humans can't hear the high pitch of the whistle, but that dogs can. This dog whistle, as well as ALL silent dog whistles, do produce a secondary audible sound.This sound is produced by the volume of air that goes across the whistle.ow to use this whistle: While your dog is asleep, or when his attention is calm and unfocused, lightly blow on the whistle. You can unlock the nut, then screw the stem in or out until the dog's ears perk up. You have found the 'sweet spot' that tunes directly to you dog.