When you have not been in a relationship yet because you are young or a loser. Also happens when you are ugly... *cries in corner* Always gets friendzoned!
A type of relationship where the man is a virgin or has little in the way of sexual experiences and the woman is not a virgin and may have had a lot of sexual experiences when the relationship started. To the man the thought of all those pecker having been in her pussy is a sexual turn own. It is also called a vmff relationship.