A term used to describe someone of an older generation (Baby Boomer). Often used as an insult to describe someone who is behind the times, lacks understanding of new terms, and lacks the ability to use technology.
“You heard of that boomer streamer?”
“Who? zAceX12? The one that streams on Twitch at twitch.tv/zAceX12?”
“Yeah, that guy is a boomer”
“Who? zAceX12? The one that streams on Twitch at twitch.tv/zAceX12?”
“Yeah, that guy is a boomer”
by TheYungStump February 2, 2020
Get the Boomermug. An Australian boy who loves hugs and cares a lot about his fans. Usually is seen with blonde hair but dabbles in dying it dark. The person may also have seagull like arms and dimples. If you see this person roaming the streets, yell "boomer!" and go give them a hug :)
Person A: Hey, did you see that guy with abnormally long arms?
STAY: Oh yeah, don't worry. That's just boomer Chan going to buy some milk.
STAY: Oh yeah, don't worry. That's just boomer Chan going to buy some milk.
by staysulegughwa January 11, 2020
Get the Boomermug. A type of bloated zombie from the Left 4 Dead franchises that pukes on survivors, alerting a horde of common infected
by NothingDefines May 22, 2019
Get the Boomermug. by speaksen October 22, 2019
Get the Boomermug. 
an old fart
by itzyagurl_taytay March 14, 2020
Get the Boomermug.