that'll be the frosty Friday
Synonym of that'll be the day (“said in reply to something that one believes will never happen”).
adj
Cold, chilly; icy.
The air was frosty; I could see my breath and walked quickly with my hands in my pockets.
I'd like a frosty milkshake.
Having frost on it or in it.
The frosty pumpkin is the sign of the end of the growing season, soon the greenery will wither and harvest end for the year.
The frosty beverage gave him a brain freeze.
Having an aloof or inhospitable manner.
After the divorce, she was civil but frosty to her ex.
Chilly from the start, she grows ever frostier as the book proceeds, partly because Mr. Martin has difficulty translating her sexual abandon to anything beyond “sexual due process.”
name
A generic name for a snowman.