Top definition
a strange and unfathomable quality that some women possess.

the ability to look amazingly attractive in traditionally very conservative clothes such as heavy sweaters, thick framed glasses and severe tied back hair styles. librarian hot women are almost always seen with a thick book of some kind

often can be used about female love interests in romantic comedies before their big makeover. the beauty is there, they're just not dressed glamorously.
that chick over there is so librarian hot.
by Netp November 11, 2007
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