It might mean that he's ready to settle down and maybe he was wild or is still doing crazy things and now wants to take his life a bit more seriously. It could also be interpreted as meaning that he needs a girl to change him. I would be questionable about this if I were you.
He is warning you that he is not grown up enough to manage himself. It may be that he wants, but isn't ready for, a relationship.
She needs a wax
You keep it
she needs help in math.
It means she has a major crush on him and he needs to avoid her - keep his distance.
To keep some one in check or in their place.
If you mean on the outside of the tank.........Do you have a clamp on the line ?
it mean the girl needs to have sex
That indicates that whatever digits are covered by the line keep repeating.
It means there is a leak that needs repaired.
SHE MEANS...she needs help
It means he needs to talk to her
It means she needs a man to make her feel "whole" and does not like the thought of being single.