A Stevie Wonder song about black man/white woman love.
He's gone white girl hazy
They got jungle fever"--Stevie Wonder.
Not all Black-White relationships are based on Jungle Fever. However, one may be able to identify relationships that are based on Jungle Fever by analyzing the couple's dating history. For instance, if a White person who lives in an area with few Blacks has only dated Blacks, then it's likely that that person has Jungle Fever.
Generally considered a derogatory term that hints at past colonial relationships between Blacks and Whites, where White colonizers enter, with fascination, the African Jungle in order to learn from and conquer it.