jamais vu
Looking at something/someone you're familiar with, but having a memory of it, and no recollection of it. Everyone you know is somehow a bit of a stranger, and everything is new - but at the same time, you know it's jamais vu. Extremely confusing, and frustrating.
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Jamais vu
The feeling or fear that you really should have heard about an Internet personality/sensation/fad/trend before you actually did
I JUST found out about Ze Frank, Wintergatan and Seth Everman, and everyone else is like "duh…" How could I possibly have missed them for so long? Total jamais vu!