"Ugh" is a common expression used to convey feelings of frustration, annoyance, or disgust. People often say "ugh" when they encounter something unpleasant, like a messy room or a long line at the store. It’s a simple way to show that something is bothering them without needing to explain in detail. This sound can also be used humorously among friends when discussing something trivial, like a bad movie or an awkward situation. For example, if someone mentions a cringeworthy moment from a TV show, others might respond with a collective "ugh" to express their shared feelings about it.