Bathtub

This emoji is not particularly popular, but it is used by people of all ages. It is most commonly used on Twitter, Instagram, and Snapchat. This emoji is not considered rude and is often used in a humorous or playful way.

The history of this emoji dates back to 2010 when it was added to the Unicode Standard. It was later included in the first version of Apple's iOS in 2011. Since then, it has been included in most major operating systems and is now widely used on social media. This emoji is often used to express a feeling of relaxation or to express a desire for a spa day.