Collection: Rude Sister Cards

Let's unleash your naughty side, with our outrageously rude, offensive and funny birthday cards for your Sister. Our collection of rude birthday cards are bound to put a smile on anyones face. All of our rude cards come with FREE UK delivery as standard, plus for every card you buy, we plant a tree. Don't worry if you've left it too late though, we have delivery upgrades available at checkout including Next Day delivery if you order by 3pm.

Whether it's a rude card for your Mum, Dad, Girlfriend, Boyfriend, Sister, Brother or Grandma, you'll be sure to find the perfect birthday insult!