A character takes an exaggerated chomp out of a piece of food to set the mood.
Needs More Examples, Needs a Better Description Exaggerated actions are a great way to build dramatic tension. When one of the characters involved happens to be eating something, then a dramatic bite may be in order. A dramatic bite is characterized by exaggerated movement of the body, extra reverberation on the crunch, and mood setting background music, among other things.
Examples:Anime & Manga