Check out Twitter's Worldwide Trends right now. There's a good chance that there's a One Direction hashtag somewhere in the mix -- and we don't just mean something general, like "#ILove1D" or "#StealMyGirl."
We're talking super esoteric stuff, like references to tweets the "Steal My Girl" singers have faved or even birthday wishes for one of their third cousins, twice removed.
Directioners crafted some excellently weird and weirdly excellent hashtags in 2014. Take the quiz below to see if you can spot the real from the fake.