Dreams dictionary: Gnaw

Dreams dictionary: Interpretation 1
To dream that you are Gnawing at something proposes that you are attempting to assault or stand up to a circumstance or issue that has been threatening you. The fantasy may likewise be a representation to mean "nah" or "no"."
Dreams dictionary: Interpretation 1
To dream that you are gnawing at something suggests that you are trying to attack or confront a situation or problem that has been menacing you. The dream may also be a metaphor to mean "nah" or "no".
Dreams dictionary: Culinary Dream Interpretation
if you dream something gnaws - you will find a hearty dinner.