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When one buys a large amount of things on sale or gets an abundance of free stuff, it is considered Indian Christmas
Person 1: "Why the hell did you bring all these shampoo samples home?!?"

Person 2: "Because it's Indian Christmas!!!!"

Person 1: "Since when?"

Person 2: "Since I brought these home! Aaaand I bought all of this manager's special donuts!"

Person 1: (palms own forehead) "Oh God..."
by Dayne White Bull November 24, 2010