snarl
Definitions
To make an aggressive growl with bared teeth.
To become tangled or knotted in a confused mass.
To involve in a complicated or difficult situation.
Examples
The angry dog began to snarl at the stranger approaching the gate.
Traffic began to snarl during the rush hour due to the construction on the main highway.
She tried to untangle the snarl of yarn that had formed in her knitting basket.