Dab

The trademark/signature gesture of douchebags and fuckboys alike (established 2016); consists of bending ones arm and leaning one's head into into it, making it look like the person is sneezing while they have the other arm sticking slightly up and straight out

Example 1:
Guy 1: "Hey what did you get on that math test?"
Guy2: "B+. What did you get?"
Guy1: "An A. *dabs*

Exqmple 2:

Guy1: "Hey how was that party on Saturday?"
Guy 2: "Awsome!"
Guy1: "Hey did you get that bj from Melissa you said you were planning on?"
Guy2: "You know it! Hell she fucking deepthroated!"
Guy1: "Sweet! I have to admit I'm kinda jealous..."
Guy2: *dabs*