1. fig. terms based on size or physical resemblance.
(a) [late 18C+] (also cockboat) the vagina; thus a prostitute or mistress [cock n.3 (1)].
(b) [1910s–30s] (US) an airplane.
(c) [1910s+] (also big boat) a large, trad. American car, esp. a large station wagon.
(d) [1910s+] (US) a large shoe or boot.
(e) [1920s] (US Und.) a freight car used to transport bootleg beer.
(f) [1950s+] (US) a large foot.
2. lit. terms of transportation.
(a) [late 19C] (UK tramp) a jail sentence; a life sentence; thus get the boat below.
(b) [20C+] (US Und.) transportation from one prison to another; the mode of transport is irrelevant.
(c) [1980s+] (drugs) a 1,000 tablet shipment of Ecstasy.
3. [1980s+] (drugs) fig. ideas of transportation [? one ‘sails away’].
(a) a cannabis cigarette.
[late 19C] (UK Und.) to be transported to Australia.
[late 19C] to be sentenced to transportation overseas or a severe form of penal servitude.
SE in slang uses
[2010s] (Aus.) a yachtsman; a sailor.
[1980s+] (US) a recently arrived immigrant.
see separate entry.
[1960s] (US) a pleasant, undemanding task.
[1930s–40s] (US Und.) a professional gambler who works the transatlantic liners.
[1960s] (US black) to walk, to travel.
[mid-19C] (US Und.) to become partners with.
[2000s] (US) of an immigrant, recently arrived; the implication is of naïveté.
[late 18C+] to join, to take shares with.