My mom used to say girls had 'front bottoms,' and always called butts, well, butts. When I found out ass meant 'bottom' (I was around five or six), I had a very involved argument with my friend on whether your ass was in the front or the back. Took me about a year to figure that one out.
A childhood belief about rude bits

others believed things like this
- I used to believe that when you had cancer, your bottom would be in front instead of in back. Anon
- once me and my friend stuck her mums tampons up are butts thinking that you didnt have to poo— ha ha ha ha
- My kids believe if they pick their nose their butts will fall off!— wendy
- I used to believe that they got the lunchmeat bologna from cutting off dead people's butts.— angie
- I thought that babies came out of our butts until waaaay too late in life o.O— Tina
- I used to think my belly bottom was my "front butt" lol i know...stupid!— Megan