Green’s Dictionary of Slang

sky n.1

1. [1930s–40s] (US black) a police officer; a prison warder [the blue uniform].

2. [1940s+] (US black) a hat [it is above the head].

SE in slang uses

In compounds

skybird (n.)

[1940s] (US black) a hallucination.

sky blue

see separate entries.

sky drummer (n.) [drummer n.3 ]

[1900s] (Aus.) a missionary.

sky farmer (n.)

see separate entry.

sky hoot (v.) [SE hoot, i.e. blow (sky high)] (US) [late 19C–1920s]

1. to rise, to increase.

2. to run off, to move fast; to act irresponsibly.

sky-juice (n.)

[20C+] (US) rainwater [note Jam. sky juice, a popular drink of flavoured syrups poured over shaved ice].

skylarker (n.)

see separate entry.

skylight (n.)

[late 18C–mid-19C] the small space between the top of a glass and the drink within it.

skylights (n.)

1. [early 19C–1910s] the eyes.

2. [1900s] spectacles.

sky-parlour (n.)

[mid-18C–19C] a garret; occas. attrib.

sky-piece (n.)

1. [late 19C–1910s] (US) the head.

2. [late 19C-1970s] (US) any form of headgear.

skypilot (n.) (also kirk pilot, pilot, sky pi, sky scout, sky-sharp, soul aviator) [he guides one to heaven]

1. [late 19C+] a priest, a prison chaplain, a preacher, a missionary.

2. attrib. use of sense 1.

sky-rocket (n.)

see separate entries.

sky rug (n.) [rug n.1 (1)]

[1940s+] (US) a wig or toupee.

sky-scraper (n.)

see separate entries.

sky-topper (n.)

[late 19C–1920s] someone or something very high.

In phrases

dive into the sky (v.)

see under dive v.

in the skies (adj.) (also in the air) [the image is cognate with fly v. (3)/high adj.1 (3) but antedates both]

[1900s] intoxicated by a drug.

reach for the sky (v.)

see under reach v.