bullroar

An extremely loud and vehement voice.

They protested vehemently with strangled groans, fat belches and rattling bullroars, spattering everyone with lacy, foul-smelling spittle, their necks and legs flailing in all directions and contorting their bodies as they were forcibly thrown to the ground by tying up a foreleg and heaving them heavily sideways.

Carmel remembers Harry's grandfather as having pure white hair and a bullroar of a voice.

Synonym of bullroarer (a type of musical instrument).

Australian aborigines symbolically depict totems on stones called churinga or on wood used as bullroars.