That style of mug became popular in the 80s, when corporate commuting and cubicle culture exploded, and cars didn’t all come standard with cupholders yet. A mug like this could sit on the dash or console with stability, and it was also good for a crowded desk because you couldn’t knock it over and spill it.
I think it’s a nautical design. The wide base keeps it steady on ships. Hence why it’s used in Star Trek.
That style of mug became popular in the 80s, when corporate commuting and cubicle culture exploded, and cars didn’t all come standard with cupholders yet. A mug like this could sit on the dash or console with stability, and it was also good for a crowded desk because you couldn’t knock it over and spill it.