1. as a sum of money.
(a) [mid-18C–mid-19C] five shillings (25p), $5.
(b) [1970s] (US) $25.
2. in drug and tobacco uses.
(a) [mid-19C–1900s] (UK prison) a quarter inch of tobacco.
(b) [1960s+] a quarter ounce (7g) of a narcotic drug.
(c) [1980s+] $25 worth of a given drug.
3. as a jail sentence.
(a) [late 19C–1900s] (UK Und.) a three-month’s prison sentence.
(b) [20C+] (US Und.) a 25-year prison sentence.
[1960s+] (drugs) $25 worth of a given drug.
[1970s] (US drugs) a place where drug users can obtain quarter-ounces of narcotics.
[1930s–50s] (US drugs) a quarter-ounce (7g) of drugs (cf. half-piece under half n.).
[1980s+] (US drugs) one-eighth of an ounce (5g) of cannabis.
SE in slang uses
see red cent n.
[1980s+] (US campus) a sarcastic admonition to mind one’s own business.