Definitions by Photography Raptor

yademag

Gameday spelled backwards. Used mainly by athletes, for the most part on social media, to signify that it is in fact a day on which a sporting event will take place that said person will participate in.

Cody: "Yademag!"
Neil: "What the hell did you just say?"
Cody: "It' gameday, lil niqqa!"

yademag by Photography Raptor June 23, 2016