Green’s Dictionary of Slang

warm adj.

1. [17C–1900s] rich, well-off.

2. [mid-18C] infected with a venereal disease.

3. [mid-18C] enthusiastic, zealous.

4. [mid-18C] slightly drunk.

5. [mid-18C+] sharp-tempered.

6. [late 19C] fast or powerful.

7. [early 19C–1920s] suggestive, esp. of speech.

8. [mid-19C] sexually unrestrained.

9. [mid-19C–1920s] unpleasant, uncomfortable.

10. [mid-19C–1950s] (orig. UK Und.) under suspicion; of a place, dangerous for criminal activity; thus warmish adj.

11. [mid-19C+] of a situation or place, exciting, active.

12. [mid-late 19C] of a picture, sexy, suggestive.

13. [late 19C] of a bill, large, poss. exorbitant.

14. [late 19C–1910s] (US) able, competent.

15. [late 19C+] of a woman, sexy, provocative; ext. as warm baby, warm dame, etc.; occas. of a man, see cite 1910.

16. [1910s–30s] (Aus.) intimate; thus warmish adj.

17. [1990s+] (US black) human, affectionate, the opposite of cool adj. (1)

In compounds

warm baby (n.)

[late 19C–1920s] (US) a fashionable, exciting individual.

warm corner (n.)

[mid-19C–1900s] anywhere frequented by prostitutes.

warm member (n.) [SE member, a participant/member n.1 (1)]

[late 19C–1920s] (US) a promiscuous man, a philanderer.

warm shop (n.) (also warm show)

[1910s–20s] a brothel.

warm ’un (n.)

[late 19C] a prostitute.

18. [1900s] (Aus.) a solid blow.

In phrases

make things warm for (v.)

to cause trouble for.

play the warm for (v.)

[1930s] (US) to make advances towards, to ingratiate with.

warm as they make them (adj.)

[late 19C] of a woman, very sexy.

SE in slang uses

In compounds

warm beer (n.) [its colour]

[1970s+] urine.

warm body (n.)

[20C+] (US) an insignificant person, someone who is present but does not participate.

warm-mouth (n.)

[1950s] (W.I.) the very first meal of the day, eaten between 4 and 6 a.m. and preceding a proper breakfast.

warm weather (n.)

[1900s] (US) a (self-)important person.

warm with (n.)

[mid–late 19C] a drink of warm spirits with water or sugar.

In phrases