noun
thick, rough voice
A vulgar, coarse, and loud voice, often associated with a deep, husky, or unrefined tone. Used to describe someone's speaking or shouting voice, not singing.
酔っ払いが胴間声で騒いでいる。
The drunkard is making a racket with a thick, rough voice.
彼の胴間声は電話越しでもすぐわかる。
You can immediately recognize his coarse voice even over the phone.
濁声 is a more neutral term for a thick or muddy voice, lacking the strong vulgar connotation of 胴間声.
The origin is uncertain. The kanji 胴 (trunk, torso) and 間 (space, interval) may suggest a voice resonating from the body cavity, implying a deep, rough sound. The exact derivation is unclear.