Definition of bark-louse:
(v) :
(intransitive) To make a short, loud, explosive noise with the vocal organs (said of animals, especially dogs).
(v) :
(intransitive) To make a clamor; to make importunate outcries.
(v) :
(transitive) To speak sharply.
(n) :
The short, loud, explosive sound uttered by a dog, a fox, and some other animals.
(n) :
(figuratively) An abrupt loud vocal utterance.
(n) :
(music) The quick opening of the hi-hat cymbal as it is hit, followed by its timely closing.