evap-o-day Share definition Flag When it's 4:30 pm and you suddenly realize your to do list is no shorter than it was when you started. It might, in fact, be longer. 4:15 already? Holy cow, but this has been an evap-o-day. evap-o-day by LoriLynn June 6, 2011 0 0 Get merch Get the evap-o-day mug. Buy Now — $32.95 See more merch