Sui generis
Sui generis (; ) is a Latin phrase that means "of its (his, her, their) own kind; in a class by itself; unique."
Sexual racial preference
Sexual racial preference is the individual's sexual preference of specific races. It is an inclination towards potential sexual or romantic partners on the basis of perceived racial identity. Not everyone agrees that this should be classified as racism, some argue that distinguishing among partners on the basis of perceived race is not racism at all but a justifiable personal preference. The origins of sexual racism can be explained by looking at its history, especially in the US, where the abolition of slavery and the Reconstruction Era had significant impacts on interracial mixing. Attitudes towards interracial relationships, and indeed marriage, have increased in positivity in the last 50 years. In 1968, 73% of US citizens disapproved of the right to marry inter-racially, whereas this figure dropped to 17% by 2007, this illustrating the reduction in discriminatory attitudes towards interracial dating. Irrespective of this, there still remains the issue of sexual racism in the online dating world, in that preferences appear to follow a racial hierarchy. Sharing the basic premise, originating from the 'taboo' nature of interracial relations, individuals of other racial groups are classified as forbidden sexual objects; the result of a racial fetish.