Tumbler with convertible lid and coaster

A tumbler with convertible lid and coaster and methods of use thereof are described. A tumbler comprises a brim, the brim defining an open end of the tumbler, an exterior side wall, an interior side wall comprising a tumbler lug, and a bottom portion comprising a tumbler bottom groove. A convertible lid and coaster comprises a top surface, the top surface further comprises a finger recess, a securable straw hole coupled with the convertible lid and coaster, a side edge comprising a convertible lid and coaster groove, and a bottom surface comprising a recessed opening, the recessed opening comprising a lid and coaster lug.