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When someone acts or (more typically) speaks under the assumption that their perspective couldn't possibly be missing anything.
I tried to tell my boss that his idea wasn't practical, but he was having a boomer moment and wouldn't listen.
by normalice August 01, 2010
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Something that was idiotically done even though it was common sense.
S: I wasn't trying for it, but I impregnated my girl...
E: You should've used a condom
S: What's a condom?
E: Boomer Moment
by bonk . October 28, 2019
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