Strong libidinal impulses, against the undisguised appearance of which consciousness protects itself, can be unusually well masked by a feeling of hunger. For hunger is a sensation that can be admitted to oneself and to others, even if it is excessive.
Abraham argues that neurotic hunger functions as a psychically permissible disguise for repressed libidinal impulses whose direct expression would be intolerable to consciousness.
, Selected Papers on Psychoanalysis, 1927thesis