a cartoon character created by Walt Disney
"Pluto is the loyal dog who often accompanies Mickey Mouse in classic cartoons."
a large asteroid that was once thought to be the farthest known planet from the sun; it has an elliptical orbit
"Pluto was discovered by Clyde Tombaugh in 1930"
To demote or devalue something.
"The critics decided to pluto his once-impressive sales record by highlighting only his recent failures."
In plain English: To pluto something means to treat it as unimportant and ignore it completely.
"The manager plutoed his old car to make room for new inventory in the garage."
Greco-Roman god of the underworld.
"In Greek mythology, Pluto was feared as the ruler who commanded the dead in his dark realm."
The word pluto comes from the Latin form of the ancient Greek god of the underworld. It was chosen to name the planet after this deity, a suggestion that has been attributed to Venetia Burney.