Alabama Barker's got a lot of team spirit ... and, not a lot of clothes -- baring nearly all in a tiny take on an Ole Miss cheerleader outfit!
The model and rapper shared several snaps in a cleavage and tummy revealing baby blue top -- with the Nike symbol on one side of her chest and "Ole Miss" written out on the other side.
She added a tiny skirt and knee-high white boots to the look ... while giving the camera a seductive look from Vaught Hemingway Stadium in Oxford, Mississippi.