To stick one's own dick in their ass. The protrusion of balls from out the ring of the anus, appearing similar to midshot sinking a basketball in a hoop.
Did you hear what Rick got up to last night? I heard he tried Sinking Baskets and couldn't reach.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.