While swearing is permitted on the boards, we prefer more creative forms of profanity:

Portmanteau: twat + cunt = twunt. Can you think of your own?

Animal combos: cock-badger and kitten-flaps have been found to be most effective.

Reversal: by reversing 'fuck' and 'cock' you can substantially improve your swearing. EG: 'Cock off you cocking fucksucker.'
Stand out from the crowd and find your own swearing style. Maybe yours will catch on.