When you "ice someone out" (i.e., dump them, fire them, or otherwise get rid of them from your life) via a coldly detached, corporate-style, bureaucratic message, resembling a business memo.
Sample Ice Memo:
"Dear Sir: I regret to inform you that, after careful consideration, I have decided to go in a different direction. This decision does not reflect any personal misgivings, but rather it is merely in the best interest of all parties involved. Sincerely, X."

Reaction to Receiving Ice Memo:

"I dated that woman for a year, and I cannot believe that she broke up with me via an ice memo."
by Spotted Zebra July 1, 2023
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