Sniveler

noun

1. One who snivels, or who cries with sniveling.
2. One who weeps; especially, one who manifests weakness by weeping.
3. Figuratively, one who affects tearfulness or expressions of penitence, especially with a nasal tone.
4. One who snivels, esp. one who snivels habitually.
5. One who snivels, a person who whines and complains about small matters.