Well-hung is an adjective used to describe the size of a man's genitals, particularly his penis. It is not inappropriate to use this term but there are people who may prefer other words that are more socially acceptable. Phrases like "well-endowed", "well-equipped", or "gifted" can be used as synonyms for well-hung. Other terms that can be used are "big", "large", or "impressively sized". It is important to keep in mind that these words can be subjective and may not be universally accepted or appreciated by all individuals. Hence, it is always best to choose your words carefully and use them sensitively.