[1] : The Collaborative International Dictionary of English v.0.48

jigaboo \jig"aboo\ n.
   a negro, especially an african-american; -- an offensive term
   usually intended as an ethnic slur. vulgar and offensive

   syn: nigger, spade, coon, nigra.
        wordnet 1.5

[2] : WordNet (r) 2.0

jigaboo
     n : ethnic slur offensive name for a black person; "only a
         black can call another black a nigga" syn: nigger, nigga,
          spade, coon, nigra
see also:
nigger nigga spade coon nigra 

Jigaboo >> J Words
Jigaboo, definition of term: Jigaboo
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