Boomers meaning : A person born in the postwar years (generally considered in the United States and other Allied countries as between 1946 and the early 1960s), when there was a marked increase in birthrates throughout the Western world following the return of servicemen at the end of World War II. An adult male kangaroo. (by extension) A person who does not know how to utilize new technologies well. Something that makes a booming sound. (mainly 1920–1930) A transient worker who would move from boom town to boom town in search of temporary work. A device used to bind or tighten chain. A nuclear ballistic missile submarine, SSBN. A bittern (subfamily Botaurinae). A red squirrel (Tamiasciurus hudsonicus). A mountain beaver (Aplodontia rufa).