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 means that everything needs to be in order.
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