Ugh/ɜː/ Definition 1 of 3Pro Tip 1/2Colloquial Expression Use 'ugh' informally with friends or in casual settings, not in formal situations. Ugh, this cheese smells terrible! Pro Tip 2/2Emotional Emphasis 'Ugh' can intensify the feeling of repulsion. It's stronger than just saying you dislike something. Ugh, I can't stand the taste of olives.