1962, American English, Cold War jargon, from Chinese + communist.
Entries linking to chicom
Chinese adj.
"of or pertaining to China," 1570s, from China + -ese. As a noun from c. 1600. Chinee (n.) is a vulgar back-formation from this word on the mistaken notion that Chinese is a plural. As an adjective, Chinian, Chinish also were used 16c. Chinese fire-drill "chaotic situation of many people rushing around futilely" is attested by 1962, U.S. military slang, perhaps with roots in World War II U.S. Marine Corps slang. The game Chinese-checkers is attested from 1938. Chinese-lantern is from 1825.
communist
1841, as both a noun and adjective, from French communiste, from commun (Old French comun "common, general, free, open, public;" see common (adj.)) + -iste (see -ist). First attested in writing by John Goodwin Barmby (1820-1881), British Owenite and utopian socialist who founded the London Communist Propaganda Society in 1841. Main modern sense, "an opponent of capitalism or supporter of revolutionary leftism," emerged after publication of Communist Manifesto ("Manifest der Kommunistischen Partei") in 1848.
All communists without exception propose that the people as a whole, or some particular division of the people, as a village or commune, should own all the means of production--land, houses, factories, railroads, canals, etc.; that production should be carried on in common; and that officers, selected in one way or another, should distribute among the inhabitants the fruits of their labor. [Richard T. Ely, "French and German Socialism in Modern Times," New York, 1883]
Shortened form Commie is attested from 1939. Century Dictionary (1900) recognizes the noun alone; as an adjective it has only communistic (1850) "relating to communists or communism."