Top Definition
Isa (ee-sa) + apocalypse Isa is a rune that symbolizes ice. During winter weather, sometimes there is freezing rain that leaves a sheet of ice on the ground; also when snow melts and re-freezes, that will leave ice. Extra caution is necessary when walking or traveling.
We've had icy weather all week. I'm tired of the isapocalypse, I want to see some sunshine!
by Jade Griffin February 05, 2011

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