DD couldn't say truck for a long time and would say "f*&K" for truck which was hilarious the day she said "look mummy, silly f*$K" - I almost had an accident and just kept saying "yes silly truck" while wiping the tears from my eyes.

We went a similar route to Cai in that if DD repeated something that was said that she shouldn't have heard (like when I yelled at the dog, "Benny you little Bug**r") I would say oh yes he's a bitof butter or something like that. She soon forgot the word.

I don't think this will last once she gets to primary school though!