Funny Sister Birthday Card – “Sisters Are Like Fat Thighs” | Viral BFF Birthday Gift

£3.10 GBP

Taxes included.

Looking for a hilarious birthday card that screams sisterly love with a side of sass?
This laugh-out-loud greeting card is perfect for your sister, bestie, or partner-in-crime who knows your weirdness and loves you anyway!

🎉 Front Quote:
"Sisters are like fat thighs—they stick together. Happy Birthday, bestie for life!"

👯‍♀️ Perfect for:

Sisters (by blood or by choice!)
Best friends who are basically your twin
Anyone who appreciates sarcasm, inside jokes, and unbreakable bonds

📦 Why it SLAYS:

Guaranteed giggles—makes for a perfect TikTok reaction moment
Trending humor that’s so her vibe
High-quality cardstock with a blank inside to pour your heart (or more jokes) out
Great for viral birthday gift baskets or surprise reveals

Blank inside
Regular size: 105 x 148mm
Large size: 148 x 210mm
Envelope: White
Printed in the UK on high-quality 300gsm Matte card

To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.

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