 really common in 2014 and 2015 and kind of has slowed down quite a bit, but it looks like it's probably going to stick around in slang as a much less frequently used word, but not disappear. In any case, what's really interesting is after she posted that original video, she later posted one and said, I didn't say fleek, I said F-L-I-C-K. She meant on fleek.