Green’s Dictionary of Slang

desk n.

SE in slang uses

In compounds

desk jockey (n.) [jockey n.2 (3b)]

(US) a clerk.

[US]H. Boyle Associated Press 19 May n.p.: Let some desk jockey in the home office envy you [W&F].
[US]‘Ed McBain’ Killer’s Wedge (1981) 48: He was a trained policeman who happened to be a desk jockey.
K. Cooper Aerobics 38: This category catches all the do-nothings, the desk jockeys, the TV watchers, the over-eaters, the over-smokers.
[UK]‘John le Carré’ Honourable Schoolboy 58: He invited three of the least bending Whitehall desk-jockeys.
[US](con. 1948) G. Pelecanos Big Blowdown (1999) 112: You got me confused with that old desk jockey, pally.
[Aus]J.J. DeCeglie Drawing Dead [ebook] The desk jockey didn’t even look up from his newspaper.
desk-polisher (n.)

a non-combatant.

[US](con. WWI) G. Bruce ‘The Flaming Arrow’ in Goodstone Pulps (1970) 50/2: The damned Intelligence Department – those desk polishers who strutted around in the fancy uniforms.