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Birthday Greeting Cards For Sister

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“What's six inches long, two inches wide and drives women wild? Money!”

We know your sister’s no prude. That’s why she’ll find our funny sister birthday greetings to be absolutely hysterical. Our birthday cards for sisters touch on all the funniest and most taboo topics out there. Whether you want funny jokes about shopping, sex or politics, we have the vulgar jokes and funny jokes that will have her cracking up. These birthday cards for sisters aren’t for the faint of heart. Instead, they’re for a sis who loves to laugh, has a wonderfully twisted sense of humor and can’t resist a good gag. We make shopping for sister birthday cards a breeze because we guarantee you’ll find something that tickles her funny bone, whether it’s a funny cartoon, a dirty joke or something even more hysterical. Check out our selection of birthday cards for sisters to find the one that you know will make you sister keel over with laughter.