Similar to a snow day, but can occur due to much less snow fall then one would think. May even occur when snow is falling, but has not yet begun to accumulate. Has also been known to occur due to ones significant other calling one at work to report a flake or two in the air at home.
Jeffrey took a Sam Day, due to 3/4 of an inch of wet, slushy snow that had fallen.
by Weather Dude February 24, 2005