Dab, or dabbing, is a dance move popularised in 2016 where the dabber simultaneously drops his head into his/her elbow like they're sneezing and raising the other hand up to the sky. With origins in the Atlanta hip-hop scene (Bad and Boujee, waddup), the dance move went viral through song, music videos, online tutorials, Twitter, Vine and the usual spectrum of social media. Everyone's doing it — hell, even Hilary Clinton did it on Ellen.