yademag

Best definition
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!”

via giphy