FBI
noun
1
fat, black and ignorant. Used in ritualistic insults US, 1971.
2
used for describing people of East Indian origin. An initialism for 'fat-belly Indian', 'fat-bottom Indian', 'fine-boned Indian', or any number of similar constructions TRINIDAD AND TOBAGO, 2003.
3
an informer. UK black prison slang UK, 2002.
4
a Filipino. An abbreviation of 'full-blooded Ilocano'. Ilocano is a dialect spoken in the Philippines; among Hawaiian youth, the term applies to any Filipino, no matter what dialect, if any, they speak US, 1982