Disposable drinking device

A disposable drinking device comprising:

• a cup, wherein the cup defines a cup cavity and includes a cup opening communicated with the cup cavity and a cup brim associated with the cup opening, the cup brim including a brim curl having a lip configuration and a flare configuration, wherein when the brim curl is in the lip configuration, the brim curl arcuately and concavely extends away from the cup opening to form a brim lip and wherein when the brim curl is in the flare configuration, the brim curl arcuately and convexly extends away from the cup opening to form a brim flare;
• and
• a thermoformed lid having a lid crown and a lid skirt, wherein the lid crown further comprises a crown top, a crown bottom and a spout having a spout opening disposed to communicate the crown top with the crown bottom, and wherein the lid skirt comprises an angular rim having an internal rim surface, wherein when the lid is snap-fittingly associated with the cup, the brim curl is in the lip configuration and the internal rim surface is securingly associated with the brim lip, such that when the lid is disassociated from the cup, the internal rim surface forcingly configures the brim curl into the flare configuration.