My son just turned 4. He's very intelligent and has a good nature about him. As a result, I haven't had to enforce much discipline. Time outs work very well when he's frustrated and needs a break to calm down. But I just have no idea how to handle this:

He was very reluctant to use the toilet. We were very late with that. He's been officially potty trained now for about 6 months. But for the last few weeks he is absolutely obsessed with bathroom talk.

He talks about pee and poop with everyone he sees - family, friends, people at the store even, kids at the park. He writes those words down everywhere on every single piece of paper he finds. He thinks its funny and he jokes about it - that's reinforced when many people laugh with him at what he says.

I keep trying to reinforce the fact that those things are private and gross and he shouldn't talk about it unless he needs help from me or dad or the grandparents when he's in the bathroom.

My words aren't working. Timeouts aren't working. Ignoring it isn't working. I don't know what else to do. This phase is lasting a little too long and it's driving me crazy.