The term 'Water Closet' originated when flush toilets were first becoming widespread. It carries a historical feel, implying a 'special room' that uses water.

In modern English-speaking countries, the term 'WC' is considered somewhat outdated, with 'restroom' or 'bathroom' being more common. As an emoji, however, it's still universally understood and is used as a fun symbol with a slightly retro or international vibe.