Meaning
The flag of Andorra, a tiny country in the Pyrenees mountains between France and Spain. It has vertical blue, yellow and red stripes, with the national coat of arms in the centre.
People use it for ski trips, mountain hiking, football matches and posts from Andorran friends: “Ski week in Andorra 🇦🇩 my legs are done” It is easily confused with the flags of Romania and Chad, which use similar colours, so the coat of arms is the giveaway.