Kareklokentavros (singular) Kareklokentavroi (plural) is a great word to put in your vocabulary.
The word translates as ‘chair centaurs’ and the mental picture is perfect as it is usually used to describe civil servants or other officials who do nothing but sit all day.
The word is akin to English words such as slacker, loafer, lazy bum, good-for-nothing, idler, do-nothing, and workshy. The Greek is particularly imaginative as it borrows from their mythology. The visual picture the word creates is of a four wooden-legged creature with a human head and torso. Perfect.
The word is a bit unfair to the centaurs (kentavros, kentavroi) as they were known to actually do things. The centauromachy (the battle between the Centaurs and the Lapiths) is an enduring story and is featured carved into the metopes of the Parthenon and elsewhere.
The greatest of the centaurs was (is) Chiron of the Pelion who is said to have taught Asklepius medicine and was also a mentor to Achilles, Theseus, Jason, Peleus and Perseus (and more). All mythological heavyweights.