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1.
A phrase originating from "the cake is a lie". It is based on the Animal Crossing fanfiction Among the Umbrellas. The reason for it is because Mabel lures the characters Lucia and Shannon into her trap with an umbrella.
Lucia: "Wow, Mabel really got us."
Shannon: "Yeah. One may say the umbrella is a lie."
by The One of Soup April 23, 2012