A deposit of interlocking ice crystals (hoar crystals) formed by direct sublimation on objects, usually those of small diameter freely exposed to the air, which surface is sufficiently cooled, mostly by nocturnal radiation, to cause the direct sublimation of the water vapor contained in the ambient air.
Hoar Frost on tree branches, plant stems and leaf edges, wires, poles, etc.
by Retnuhkle February 04, 2010
When a hooker drops her panties in the middle of winter
Damn, boy! That bitch done got some hoar frost
by kurtbeans45 December 19, 2014