A trend which remains relevant for far too long, to the point of annoying those actual cool people who years ago, were aware of, and/or adopted the trend and now have abandoned it and consider it a lame ass relic. Examples include: nerdy glasses, Lady Gaga, hipster culture.
Yesterday at Bumbershoot I noticed a lot of beardos, I guess beard wearing wierdos continue to be persistently trelevant.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.