Anscheinend ein Neologismus ...
Vocab On Fleek
On fleek or not, fleek is a word worth knowing
Born* in a Vine video on June 21, 2014, the term fleek is a busy word. It was originally (and still is most commonly) applied to perfectly-groomed eyebrows, but the word has been used to describe everything from hash browns to skateboards.
Eyebrows—the original things that were on fleek
(*"Born" isn't quite true; there's some earlier evidence of the term in use, but not with the meaning that's caught on.)
usually in phrase on fleek
Extremely good, attractive, or stylish.
‘my hair is on fleek right now’
‘OMG the music is on fleek’
‘have you ever seen anything so fleek in your life?’
Early 21st century: apparently an arbitrary formation; popularized in a 2014 video post on the social media service Vine by Kayla Newman (‘Peaches Monroee’).