To cry or whine with snuffling. The child began to snivel after being scolded by his parents.
To speak or act in a whining, tearful, or weakly emotional manner. He would often snivel about his problems instead of facing them head-on.
To sniffle repeatedly because of a cold or nasal congestion, making soft sniffing sounds. He snivelled quietly in the back row, trying not to draw attention to his cold.