Wigger, or wigga, is a term for a white person of European ethnic origin, who emulates the perceived mannerisms, language, and fashions associated with African culture, particularly hip hop.[1] The term is a portmanteau of white and nigger. The term "nigger" is pejorative and is viewed as a highly offensive racist insult and slur.

One dictionary defines the term as a slang, derogatory reference to "...a white youth who adopts black youth culture by adopting its speech, wearing its clothes, and listening to its music."[2] Another dictionary defines the term as "offensive slang" referring to a "...white person, usually a teenager or young adult, who adopts the fashions, the tastes, and often the mannerisms considered typical of urban black youth."[3]

The term is generally considered derogatory, reflecting stereotypes of African-American, black British, and white culture (when used as a synonym of white trash). Thewannabe connotation may be used pejoratively, implying a failed attempt at cultural appropriation by a white person. It is also sometimes used in a racist manner by some non black persons, not only belittling the person perceived as "acting black", but also demeaning black people and culture, by proxy.

https://en.wikipedia.org/wiki/Wigger