When your nostalgia makes you act stupid. Usually hate whatever is new and prefer the old version just because of nostalgia.
Person 1: "Dude, the original GTA was the bomb. GTA V sucks"
Person 2: "You're nostalgia biased"

Person 1: "Omg, Dragon Ball Z was so much better than Super!"
Person 2: "Reason?"
Person 1: "Because I watched it when I was a kid! Plus it's just better"
Person 2: "Nostalgia Bias"
by VYDEOS May 18, 2021
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