The Collaborative International Dictionary of English v.0.48:

Juke \Juke\, v. i. [from Scottish jouk to bow.]
   To bend the neck; to bow or duck the head. [Written also
   jook and jouk.]
   [1913 Webster]

         The money merchant was so proud of his trust that he
         went juking and tossing of his head.     --L' Estrange.
   [1913 Webster]

WordNet (r) 3.0 (2006):

jook
    n 1: a Chinese rice gruel eaten for breakfast [syn: congee,
         jook]
    2: a small roadside establishment in the southeastern United
       States where you can eat and drink and dance to music
       provided by a jukebox [syn: juke, jook, juke joint,
       jook joint, juke house, jook house]