Non-sexual adult baby (those who appear to be paraphilic infantalist but lack the true paraphilia). Pertains to one who like baby-like; enjoying wearing and possibly using diapers, sucking pacifier, drinking from a bottle or sippy cup, sleep in a crib, ect. This is an accurate definition for those that appear to be paraphilic infantalist but lack the sexual elements necessary for a fetish. This is not a fetish, this is a lifestyle.
A man who wears a diaper shirt and overalls during the day and a blanket sleeper at night is showing elements of NSAB.

A girl who is not a drug user who is sucking a pacifier is showing elements of NSAB.
by altdiapereseacher September 22, 2009
Tool - one who is socially maladjusted; a lame person
Nsab is a tool (socially maladjusted; a lame person)
by ToolPolice November 06, 2004

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