Please shout at me if you think I am a prude here, but I feel that "Toilet Talk" should not be encouraged. It should be either ignored or discouraged.
My 5 year old went through a wee, poo phase a couple of years ago. I ignored it and it soon passed. However, recently she has started again! When I sat her down and asked her why she keeps on saying these words, she said that her cousin does so she can too. Her cousin will be 4 soon(and a boy!!) and I know that he is actively encouraged to talk, sing and make up rhymes about pooing and weeing by his Father. I know this as I heard him using "Toilet talk" a lot on holiday and he told me that "daddy thinks it's really funny to sing songs about poo"!
What would you advise?