It's is true that Walt disney put volontary some naughty drawing in them cartoon?

Walt disney most likely didn't intend for 'naughty' things in the animated cartoons/movies, but sometimes the animators put stuff in for fun. Other times, what people claim to be true, really isn't. An example would be the word "sex" in 'The Lion King', but really it's supposed to be 'sfx' for the special effects crew.
I hope I helped anda at all. :)