Andrew: Hey look at that dirty boomer over there.
Michael: Oh, you mean Nico, yeah he's such a boomer!
Michael: Oh, you mean Nico, yeah he's such a boomer!
by duqq October 16, 2019

Another name for a person called Gwilym.
The Gwilym Boomer sometimes referred to as the Gwilboom is an especially childish boomer that denies that he is a boomer
The Gwilym Boomer sometimes referred to as the Gwilboom is an especially childish boomer that denies that he is a boomer
by Youreaboomer November 9, 2019

Despite the common misconception that the word "boomer" refers to either the generation born after the end of World War Two or a person who hold outdated or antiquated ideas, a boomer actually refers to anyone that I disagree with. It is highly derogatory and anyone who is called a boomer should feel deeply shamed about what they have done to derserve the title.
Boomer: "Actually I really just don't think that cannibalism would solve more problems than it creates."
Me: "Okay, BOOMER."
Me: "Okay, BOOMER."
by OneAnonymousPseudonym June 23, 2020

Someone usually above the age of 60-65, would be considered a boomer. Blown up by TikTok, boomer can be used when an elderly person says something against a younger generation.
Elderly person: You young people can’t live without your mobile phones and stupid technology!
Modern Generation: oK bOoMeR
Modern Generation: oK bOoMeR
by Shah5ive November 12, 2019

by Severalapollo7 November 20, 2019
