I was at my friend's house, and her four-year-old brother was hanging out with us. My friend and I were joking around, and I used the word tushy, which I think we all agree is not a bad word. Her younger brother piped in, laughing, "She used a bathroom word!"
We all thought this was hilariously funny (and it really was very cute). My friend's brother had a point, though: I probably shouldn't have said tushy in his presence, since it is considered a bathroom word to four-year-olds. Obviously, it is not a bad word for those of us past preschool, and I must prefer using tushy to the many other vulgar and inappropriate terms out there. However, next time I'm around little ones, I really should think twice before I speak.