A Joco Mofo may be defined as a thoroughly awesome person, male or female, who is obsessed with the music, life, and personality of Jonathan Coulton.
"Joco" is a nickname that Jonathan Coulton is often called by his fans.
"Mofo" is a term which is short for "motherfucker".
Tristan: Magghie knows all the lyrics to every Jonathan Coulton song, and owns three Jonathan Coulton T-Shirt.
Brian: Dude, she's a Joco mofo!

It was then that Seth realized that Lizanne, too, was a Joco mofo.
by Magpie Coulton July 26, 2011
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