Stinkbug

The Stinkbug is a Critter that spawns in the daytime in the Forest. They can be used to craft the Flymeal, as well as the Stinkbug Blockers which prevent NPCs from moving into a particular Home.

Trivia

 * Real life stinkbugs make a chemical reaction when disturbed that smells like a "pungent odor like cilantro." Since the in-game stinkbug is used to craft the Flymeal, which inflicts the Stinky debuff, one can reasonably assume that the Stinky debuff emits this same smell.