1. [mid-19C+] (US campus) the best, usu. used with a suitable n. or v., as -king sfx .
2. [late 19C+] (Aus./US) a respected figure, e.g. in a prison, or the leader of a gang of larrikins; also attrib.
3. [1960s+] (gay) a masculine lesbian.
4. [2000s] (US black) a term of address.
5. see king hit n.
[late 19C-1920s] a pack of playing cards.
[1990s+] (US teen) the very best of a person, place or thing; thus the female counterpart queen mama n.
[1970s+] (Aus.) a much admired person.
SE in slang uses
see Lord Muck under muck n.1
see His Majesty’s bad bargain n.
see royal shaft under royal adj.
see kinchin mort under kinchin n.
see under peg n.4
[early 19C] chains, fetters.
see throne n.
see under draw v.4