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)
[late 19C–1920s] (US) a fashionable, exciting individual.
see under bit n.1
see hot pants n.
[mid-19C–1900s] anywhere frequented by prostitutes.
[late 19C–1920s] (US) a promiscuous man, a philanderer.
[1910s–20s] a brothel.
[late 19C] a prostitute.
18. [1900s] (Aus.) a solid blow.
to cause trouble for.
[1930s] (US) to make advances towards, to ingratiate with.
[late 19C] of a woman, very sexy.
SE in slang uses
[20C+] (US) an insignificant person, someone who is present but does not participate.
see hot flannel under flannel n.1
[1950s] (W.I.) the very first meal of the day, eaten between 4 and 6 a.m. and preceding a proper breakfast.
see hot water n.
[1900s] (US) a (self-)important person.
[mid–late 19C] a drink of warm spirits with water or sugar.
see make it hot for under hot adj.
see hot in the tail under tail n.