Poison Fruit is a term used to refer to certain poisonous objects dropped by Whispy Woods and his relatives. Unlike Apples and most other objects, these fruit may be dangerous to inhale, causing Kirby to take a small amount of damage when doing so, and being unable to spit them back out again afterward. Despite this, poison fruit can be destroyed by other means without consequence.
Kirby Super Star Ultra
Poison fruit appear in this game as Poison Apples. These are occasionally dropped by Whispy's Revenge in Revenge of the King and The True Arena. They can be distinguished from regular apples by their purple coloration.
Kirby's Return to Dream Land
Kirby Star Allies
The cherries dropped by Yggy Woods are (nearly) all poisonous to eat. However, these can be spat back out instead of swallowed to avoid the damage.