A wet nose is an insult someone uses when they are dissatisfied with your ability to execute commands in a very large machine, usuallydelivered by a superior.
A person who's lame and boring. Not particularly terrible, just like a "meh" person. They don't contribute a whole ton, they don't take initiative, they're gunna probably have a boring life. A shrug of a person.
Malina concluded she had wet noodle syndrome when she could not explain why she cried by herself in the bathroom for 2 hours at last night's party, ruining the night for her and everyone around her.