Womb and vagina envy are two ideas that some people believe in. They suggest that some men, who don't have a womb or vagina, might feel jealous or envious of women who do have them.
To understand what a womb is, think of it like a special place where a baby grows inside a woman's body when she is pregnant. It's like a cozy room where the baby sleeps and gets food and water from their mom. Men don't have a womb, so they can't carry babies inside their own bodies.
The vagina, on the other hand, is the opening between a woman's legs that allows a man's penis to go inside during sex. Women have vaginas, but men don't.
So, womb and vagina envy suggest that some men might feel unhappy or upset that they can't experience the things that women can. This might be because they wish they could have babies themselves or because they feel left out during sex.
However, it's important to remember that not all men feel this way and that it's okay for people to have different experiences and feelings.