chillywarm Share definition Flag When the air outside is chilly in the shade, but it becomes warm when you go into the sunlight. Dan thought it was chilly out until he stepped into the light so he exclaimed: "Damn it's chillywarm out here." chillywarm by SlaveLabor52 October 2, 2005 0 0 Get merch Get the chillywarm mug. Buy Now — $32.95 See more merch