Use the ammunition you already have
Add the nickname, the bad habit, the ridiculous purchase, the pub story or the phrase they say every five minutes. Specific details make a sweary card feel like it came from you rather than from a mass-produced rack.
From cheeky to savage
You decide how hard the card goes. Lower brutality keeps it playful; higher settings make the roast sharper. You still review the result before checkout, so you remain in control of what is actually printed.
Ideal for mates, partners and family who can take it
Sweary personalised cards work especially well between people who already share that style of humour. For a different angle, you can also explore rude birthday cards, roast cards, funny cards for mates and adult humour cards.