Humtwiddlyday Share definition Flag A lost day between timezones. When you spend 24 hours travelling but it is still the same day when you arrive. I flew to 'merica last week, curse that Humtwiddlyday. Humtwiddlyday by JjjjjjllJoePanther66 April 3, 2019 0 0 Get merch Get the Humtwiddlyday mug. Buy Now — $32.95 See more merch