When I was a youngster, I learned about circumcision in such a way that I believed it was reserved for Jewish people. Later, at a friends house, I saw an image in a foreign porno mag of a man who was missing the head of his penis (I don't know why, I couldn't read the text).

This lead me to believe that Jewish men were all missing the head of their penes, and that's what circumcision was.

Here's the worst part:

This stayed with me until I was 23! It was very embarassing when I mentioned to a girlfriend that I couldn't imagine having a circumsized penis, and she had to tell me that I was very silly because I was circumsized. I was lucky that she thought it was so rediculous, that I must have been joking.

I had to look it up later to find out why it was funny.

Thought I was whole...

when i was a child and i heard that penis's had heads on them i envisioned an actual little head on top of a penis!! i was mortified!!

the man who sat on elvis's knee

Whenever boys would get hit in the crotch by a ball or something, they'd be like "ow my nuts!" so I thought "nuts" just referred to the area between your legs, and I didn't know it hurt a lot more for boys to be hit there than for girls. So whenever a ball would hit me in between the legs I'd be like "ow my nuts!"

Aubrey

my brother told me the woman's name "Eunis" was actually the word for a girl's private parts. this made sense since there were guys named 'Dick.' Yes, I know it's ridiculous...I've beaten him repeatedly for this intentional misdirection

Anon

I don’t know how old I was but one day I thought I saw pubic hair. I ran out and told my Mom and Dad I had hair down below. My Mom told me there was not any as she gave me a bath last night. I said maybe some water got in and grew some.

Mark

When me andmy sister were little we used to call farts blow offs. So obviously when everyone at school started talking about giving somebody a blow job i thought it was really disgusting because i thought they wanted to fart in the guys face!

Anon

I used to think that boys had two penis'. One for the front, and one for the back! Well, it made sence to me! Looked like girls had two vagina's...one for the front, and one for the back!

MAU!

I had a double hernia operation when I was 1 year old. Later when I was about 5, my older brother explained my scars to me. He said the doctors took an old dead man's testicles and replaced them into my scrotum sack. I believed him and ran crying to mom.

Kyle

I overheard my grandmother (77yo) talking with my aunt (58yo) about how she's had a hard lump at the top(front) of her 'min' (how she referrs to her genitals) and that she's spent years trying to scrub it off. My aunt explained to her that it's her clitoris. My Nan then said that she's never heard of one of those..... It's not just kids who can be naive!

Amazed Grandson

My grandmother (and mother) used to (and still does) tell me and my sisters that if you sleep in your bra, your boobs won't grow. So we were always sure to take off our bra's before bed. Ironically enough, she (my grandmother) dosen't wear underwear to bed, does that mean that her butt grows at night?

Anon

I used to think my grandmother had two, shall we say, back ends. I didn't realize the second one was cleavage.

Anon

I used to believe that your arse cheeks were actually full of shit!

anon

All of the girls in my family were told that we had to keep our chests warm so breasts would grow.
I don't know where it came from, but I kept them warm and have larger ones while my sister did not and is flat chested.

Katharine

my dad used 2 tell me that eating your lima beans would make u get big boobs so when dinner came around i would have a full plate of them only!

Anon

Well my mom always referred to a vagina as 'tuttel'. I always thought everyone knew that you could also say 'tuttel' when referring to a womans genital parts, since you have lots of words that refer to it.

When I was about 14 there were a new sort stuffed animals, which were called; Tuttels. I was disgusted, why would someone make something innocent like stuffed animals such a grose thing.

Whoops

I used to think that we were all born as boys and if your parents wanted a girl, they cut off your penis and sprinkled majic stuff on his boobies to make em grow later!!!!

Nope

When penises were first explained to me as organs which filled with blood during erection, I didn't quite get it. What happened when they were not erect? I figured that penises had to be long empty tubes, and in order to get the rounded bulge that one saw in underwear commercials, men had to manually coil the otherwise flat, limp penis in their pants.

Lisa

I thought that boys had a bone inside of their penises that would pop out and make them hard. If you stuck something inside the hole and then turned the guy on, it would break the bone and the guy would never get an erection again. This was discussed on the playground as a form of torture.

Boner

When I was little I heard someone talking about having a vasectomy and my mom explained that it was so a man couldn't father children any more. She didn't explain how it's done, so I thouht it meant that they cut the guy's penis off.

Kate

My mom and I were watching a movie that mentioned sex when I was about 7, so when I asked about it, she breifly explained things to me, not wanting to decieve me or lie. However, I didn't know what anything looked like.

Later, I was at my cousin's house, and my cousin and my brother were rough-housing. My cousin yelled, ouch, you kicked me in the balls!" I knew the place he was hurt was supposed to be where a "penis" was, but I didn't know why it was called "balls." I figured a penis must be shaped like a snowman, made of balls of skin. I thought this basically until sex ed in school.... ]_[

Kjk