snarls

Makes an aggressive, low growl, often showing teeth, or speaks angrily.

"The guard dog snarls at anyone approaching the gate."

Tangled masses of hair, thread, or other material difficult to untangle.

"She spent ages brushing out the snarls in her long hair."

Aggressive, low growling sounds made by an animal or person.

"The dog's angry snarls kept the burglar away."