0 past simple and past participle of grunt
It would also be interesting to know the system under which these licences are grunted.
Brock walked up to him, sniffed twice, grunted and disappeared into the night.
Their music was fast, unpolished in production and with raspy or grunted vocals.
Inside a blanket he held a microphone and for a period of eight hours grunted into the microphone as viewers watched from the doorway.
