1. as a bodily fluid.
(a) [17C] vaginal secretions.
(b) [17C–1900s] semen.
2. in fig. senses, i.e. that which ‘greases the wheels’.
(a) [mid-19C; 1910s+] (US) flattery, sweet talk.
(b) [late 19C+] graft, bribery, and the money for paying it.
(c) [20C+] (Aus./N.Z.) information, which oils the wheels of communication.
(d) [1910s] facility, ability.
(e) [1930s] lies, misinformation.
3. in senses of drink or drugs.
(a) [mid-19C+] (later US black) alcohol, esp. wine.
(b) [1920s–40s] (Irish) a drink.
(c) [1940s–70s] (US) coffee.
(d) [1960s+] (drugs) hashish oil or purified hashish.
(e) [1980s+] (drugs) heroin.
(f) [1980s+] (drugs) phencyclidine.
4. [1900s–40s] (US Und.) nitroglycerin; gelignite.
5. see oiler n.2 (1)
[1930s–60s] (US) a flatterer or a swindler.
[1920s] (US tramp) to be aware, to know what is going on.
[18C+] (orig. US) drunk.
see separate entry.
1. [1910s+] (US) flattery, insincere charm.
2. [1910s] (US) nonsense.
[1910s–20s] on a drinking bout.
[1930s+] to flatter.
[1910s+] (Aus.) the honest truth, the facts.
see swim in golden grease under swim v.
SE in slang uses
[1960s] (US black) the buttocks.
1. [1920s–30s] (US) a useless person, a good-for-nothing.
2. [1940s] (US) a derog. term for an automobile.
[1940s] (US black) to beat up; to kill.
see under strike v.