boomer
UK: ˈbuːmə | US: ˈbuːmər
n. 1. A member of the baby boomer generation (born 1946–1964).
n. 2. Informal: A person who resists change or holds outdated views.
n. 3. Australian slang: A large male kangaroo.
The term "boomer" originates from the phrase "baby boom," referring to the post-WWII surge in births (1946–1964). "Boom" itself derives from the Dutch word "boomen" (to roar or thrive), later adopted into English to describe explosive growth or loud sounds. The suffix "-er" denotes a person associated with the root (e.g., "worker," "teacher"). In Australian slang, "boomer" was repurposed to describe kangaroos, likely due to their powerful, bounding movement resembling a "boom." The informal derogatory sense emerged in the 2010s, critiquing perceived generational stubbornness.
Many boomers retired during the early 2000s.
"OK, boomer" became a viral phrase mocking generational divides.
The wildlife documentary featured a dominant boomer leading the mob.
Economic policies often cater to boomers' financial interests.
He’s such a boomer—he still refuses to use smartphones.