Unpleasant or disgusting to look at, taste, or smell.
The word yucky is probably imitative of the sound of disgust or distaste.
- The food looked yucky and she didn't want to eat it.
- The smell was yucky, it must be spoiled milk.
- The medicine tasted yucky and she couldn't swallow it.
- The texture of the food was yucky and it made her nauseous.
- The color of the drink was yucky and it looked like it had gone bad.