Yuck/jʌk/ Definition 1 of 2Pro Tip 1/3Strong Dislike Use when you feel a strong sense of repulsion and want to express it vividly. Yuck! I can't eat broccoli! Pro Tip 2/3Informal Reaction Appropriate for casual settings with peers but not formal or respectful dialogs. Yuck, why would you show me that? Pro Tip 3/3Emotional Expression Conveys immediate emotional reaction before a full thought or sentence forms. Yuck! That stinks!