acronym for double income, no kids, popular from 1987.
dink (n.1)
"drop-shot," in lawn tennis, 1939, probably somehow imitative. As a verb by 1942. Related: Dinked; dinking.
dink (n.2)
derogatory for "Vietnamese," 1969, U.S. military slang, of uncertain origin.
dingleberry
dingo
dingus
dingy
dining
DINK
dink
dinkum
dinky
dinna
dinner