Top Definition
A feigned headache brought about by a desire to create the opportunity for a long weekend. Also known as a Friday Migraine. Used primarily by reptiles, such as Jararaca.
Where is Lynne today?
She called out, she has a migraine again.
Oh, you mean she has a Jara Headache, figures. It's Monday!
by PurveyorOfJuice August 25, 2009
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