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2.
Canceling plans with a group of friends to do the exact same thing with a different group of friends.
She totally pulled a Reiko on us last night -- she went barhopping downtown with those hesher guys after she said she was busy.
by antipode August 17, 2011
 
1.
international word used for describing kind, short, japanese, filipino girls with long hair.

japanese for elegant child
that girl is so Reiko
by reiks October 13, 2005
 
3.
Any depressed male/female anime character with white hair, and a strange 'uncurable' disease.
Man, Jushiro Ukitake is being one big Reiko when he coughs up all that blood.
by Mikau Onikino June 11, 2010