the name given when you have no idea what day it is due to an amazing previous night
"It must be Pluday because I have no clue what day it is."

"It doesn't feel like Thursday. Must be Pluday."

And on the eighth day, God said, "That was fucked up, yo." We now have Pluday instead of eight days.
by VectorDancer January 20, 2010
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