They are is. Only smart people can use this legendary rare word.
So basically this word gives you the option to use either "They're", "They", "There" or "There's" in a sentence without it being "incorrect".
Y'know some people are jus very tired and they say random stuff, which it what i did. My "friend" clowned me about it. and that's when i took it personally... as Michael Jordan once said, which is now a trending basketball meme.
Student: Wait so you said they'res how many pages in the packet we have to complete tonight?"
Teacher: "They'res 4 pages, enjoy the rest of your day!"