Green’s Dictionary of Slang

court n.

SE in slang uses

In compounds

court card (n.) [note Lincolnshire dial. ‘one who has risen very much in social position’]

1. a dandy, a ‘gay, fluttering coxcomb’ (Grose, 1785).

[UK]B.E. Dict. Canting Crew n.p.: Court-card, a gay fluttering Fellow.
[UK]New Canting Dict. [as cit. c.1698].
[UK]Bailey Universal Etym. Eng. Dict. [as cit. c.1698].
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Court card, a gay fluttering coxcomb.
[UK]Lex. Balatronicum.
[UK]B.M. Carew Life and Adventures.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.

2. a helpful person.

[UK]W.T. Moncrieff Tom and Jerry II iv: mrs. t.: I’ll open the door for you; and then make the best of your way off. log.: Will you – you’re a regular court-card. jerry: Yes, queen of hearts.
court cream (n.) [the mannered speech of a royal court]

empty speeches, filled only with fake sincerity.

[UK]Sir J. Balfour Annales of Scotland (1824–5) II 180: Such fleices might be so eassily shorne off his poore subjects, with no more labor and expensse, then the cuning bestouing of soume courte creame one the comons .
court holy water (n.) (also court holy bread, ... promises) [the mannered speech of a royal court]

empty speeches, filled only with fake sincerity.

[UK]Florio Worlde of Wordes n.p.: Mantellizare, to flatter, to giue one court holie water.
[UK]Shakespeare King Lear III ii: O nuncle, court holy-water in a dry house is better than this rain-water out o’ door.
[UK]B.E. Dict. Canting Crew n.p.: Court promises, fair Speeches, or empty Promises, without Performances. Much the same with Court-holy-water.
[UK]New Canting Dict.
[UK]Bailey Universal Etym. Eng. Dict.
[UK]Grose Classical Dict. of the Vulgar Tongue n.p.: Court holy water / Court promises fair speeches and promises, without performance.
[UK]Lex. Balatronicum.
[UK]R. Nares Gloss. (1888) I 198: court holy-water. A proverbial phrase for flattery, and fine words without deeds; borrowed from the French, who have their own eau bénite de la cour, in the same sense.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.
court noll (n.) [SE noll, a dull, drunken person]

a courtier; thus courtnold, courtier-like.

[UK]T. Howell Arb. Amitie N: Though ich am not zo zeemlie chwot, As bene the courtnoles gay [OED].
[UK]Greene Quip for an Upstart Courtier D: Now euery lowt must haue his sonne a Courtnoll.
[UK]G. Peele Sir Clyomon and Sir Clamydes in Dyce (1861) 516: What, will you not flout an old man, you courtnold Jack? [...] You courtnoll crackropes, would be hang’d!
[UK]W. Warner Albion’s England Bk 16 ciii (1612) 405: Such bastard Courtnals serue but Turns, befibbing Coyns of brasse .
[UK]W. Chamberlayne Love’s Victory 56: Lost! hey – ’tis no matter and we were Both lost, so we could find some of our old Mates again – Ich can’t abide these Courtknowles.

In phrases

court in (v.) [the other members fig. ‘hold court’]

(US gang) to subject to a ritual initiation, usu. involving a mild beating from fellow gang members, followed by some form of blooding, typically an armed attack on members of a rival gang.

[US]L. Bing Do or Die (1992) 56: These kids ain’t been courted in yet, even, but they claim the ’hood.
[US]K. Scott Monster (1994) 9: ‘Courted in’ means to be accepted [i.e. into a gang] through a barrage of tests, usually physical, though this can include shooting people.
Thug’s Journal 4 Apr. 🌐 Leroy Bodacious Romeo and Hacksaw Butchweed wuz two busters from da hood that wuz bangin wit da posse. Da crew courted dey in so they be flyin the colors.
court of assistants (n.) [pun on SE court of assistants, senior members of city companies, responsible for managing their affairs]

the young men with whom young wives, unhappy in their marriages to older men, are likely to seek solace.

[UK]Grose Classical Dict. of the Vulgar Tongue ms. additions n.p.: Court of Assistants. A Court often applied to by Young Women who Marry Old Men.
[UK]Grose Classical Dict. of the Vulgar Tongue (3rd edn) .
[UK]Lex. Balatronicum.
[UK]Egan Grose’s Classical Dict. of the Vulgar Tongue.