Meaning
A guard in a tall dark fur hat and formal uniform, a look that usually recalls ceremonial palace guards who stand perfectly still on duty. This is the gender-neutral version; man and woman versions exist, all with skin tone options.
People use it for trips to London, ceremonies, and anyone standing still or keeping watch. It is also a joke about guarding food or a seat: βSaving our seats at the cinema, nobody gets past me πβ