Blondeheimers 

A temporary moderate to severe memmory loss brought on by the presence of blonde hair

Oh that was a blondeheimers moment.

Blondeheimers by Julie Kaufmann January 3, 2006

Blondehiemers 

Blondehiemers,

noun,

1) A common form of dementia, a neurologic disease characterized by absence of mental ability severe enough to interfere with normal activities of daily living, lasting at least six months, often present from birth. Blondehiemers frequently occurs in teenage girls, and is marked by a severely limited cognitive functions such as remembering, reasoning, and planning.

Hannah's Blondehiemers is so severe she often not only doesn't get jokes, but doesn't know when a joke has been made.

Blondehiemers by Immodest December 20, 2009