In Psychoanalysis an Oral Stage Fixation is where as young child a person becomes orally dependent and obsessed with oral stimulation. This could be due to being underfed (neglected) or over-fed (over-protected.)

The neglected child strives to achieve and becomes obsessed with receiving oral stimulation which can lead to learning to manipulate others to fulfill his needs rather than maturing to independence.

The overly protected child may resist growing up and try to return to that state of dependency through crying (whinging on a blog or facebook about their responsiblilites), acting helpless (living at home with a parent), demanding satisfaction (by making themselves consciously aware of someone who used to give them oral sex), and being "needy" (acting as if they were kicked out for no apparent reason)

Oral fixations are considered to contribute to smoking addictions and even alcoholism. Other symptoms include a sarcastic or "biting" personality (known as "oral sadistic" qualities).

Is Freud describing anyone you know???