The Gold Cup is returning to the U.S.A. -- and the champions celebrated with an all-out rager for the ages ... including a makeshift Slip 'N Slide, chugging booze from the trophy and having a T-Pain jam session!!
Sunday night's finals match between the U.S. and Mexico was nothing short of an instant classic ... with Miles Robinson nailing a header 117 minutes into play to put the Red, White and Blue up 1-0, which would be enough to secure the victory.
With a dramatic win like that, the guys had to let loose once the championship was secured .