boomer
n. countable B2 Upper Intermediate US //ˈbumɝ// UK //bˈuːmɐ// boomer Archaic Informal Slang Vulgar
n. a person born between 1946 and 1964. People often use this word to describe someone who has old-fashioned ideas or doesn't understand modern technology.
n. a person born during the post-World War II baby boom, specifically between 1946 and 1964. Often used pejoratively in modern slang to dismiss older individuals perceived as out of touch.
My uncle is a typical boomer who still prints out his emails.
The term boomer has evolved from a demographic label into a common internet insult for anyone with conservative or outdated views.
Usage
Often used in the dismissive phrase 'OK boomer' to ignore the opinions of older people.