Expresses the idea of 'as if to say' or 'as though' something is the case.
Long explanation:
The ~んばかりに grammar point is used to depict situations where actions speaks louder than words, implying that one's actions suggest their thoughts or feelings more than their words are. It can be translated as 'as if to say' or 'as though' in English. This grammar is usually used with nouns and verbs that represent speech or feeling.