Atlanta United Viking Clap

 

You’ll hear a double drumbeat, followed by a pause, then clap your hands overhead a single time and yell a single letter, to spell “ATL”
Drumbeat: —–A!
Drumbeat: —- T!
Drumbeat: —- L!
(repeat faster & faster until everyone just claps & yells)

 

Usually around minutes 42 and 80; everyone in SS raises their hands overhead, followed by everyone in stadium.