chew at

chew (away) at something

to gnaw or chew something for a period of time. The puppy chewed away at the leather belt all night.

Name	Pronounced	Usage
Garland	GAHR-lənd	English
Aiko	ah-ee-ko	Japanese
Gabby	GAB-ee	English
RiČArdas	-	Lithuanian
Theodora	[θiə'dɔ:rə]
Wolfram	-	German