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Funny Birthday Card for Sister, Birthday Card for Her. Funny Birthday Card for Sister Looking for a birthday card that's guaranteed to make your sister laugh? This funny "Sisterrrrrrrrrrrr" birthday card features a quirky illustrated character holding colourful birthday balloons and shouting the most important word on her special day... SISTER! Perfect for sisters who appreciate sarcastic humour, silly jokes, and unique birthday cards that stand out from the usual sentimental greetings. Whether she's your big sister, little sister, best friend, partner-in-crime, or favourite sibling (don't tell the others!), this card is a fun and memorable way to celebrate her birthday. Why She'll Love It: ✔ Unique illustrated design ✔ Funny and light-hearted humour ✔ Perfect for sisters of all ages ✔ Blank inside for your own heartfelt message ✔ Great keepsake birthday card ✔ Suitable from brother, sister, friend, or family member Perfect For: Sister Birthday Gift Funny Birthday Wishes Big Sister Birthday Little Sister Birthday Adult Sister Birthday Best Friend Like a Sister Sibling Birthday Celebration Family Birthday Card ✨ Product Details: Standard 5.8 x 5.8 Inches square card. Printed on premium cardstock. Choice of blank or printed message inside. Personalized with name on the front. Includes kraft envelope. DELIVERY: All UK Orders Are Sent Via Royal Mail Postage. Once dispatched, arrives within 1-3 working days. The estimate delivery times are visible when you place your order and are also visible on your order details. (please when you place your order ensure the latest date is suitable for your time frame) We send all orders within a protective hardback envelope to avoid bends and damage! No invoice/receipt are posted out with the card, all invoices/receipts are sent via email. 📬 Need help? I’m just a message away – happy to assist you with customization or any questions! funny birthday card for sister sister birthday card funny unique birthday card sister birthday card for sister from sister funny sister birthday gift happy birthday sister card humorous sister birthday card sister birthday greeting card sibling birthday card birthday card for adult sister funny birthday card for older sister funny birthday card for younger sister quirky sister birthday card hilarious birthday card for sister personalised sister birthday card cute funny sister birthday card rude funny birthday card sister handcrafted sister birthday card minimalist birthday card for sister unique greeting card for sister birthday sister gifts birthday sister birthday present idea funny sibling gift birthday card from brother to sister birthday card from sister to sister novelty sister card best sister birthday card family birthday greeting