Noun
white trash (uncountable)
(US, idiomatic, derogatory, ethnic slur, offensive) A poorly educated white person or, collectively, white people of low social status and often regarded as lazy, irresponsible, incompetent, etc.
This white trash can't pay for his own beer.
These lowlife characters are white trash.
Racism: Essential Readings (2001) p. 188 Philip C. Kolin, Contemporary African American Women Playwrights (2007) p. 29 Use of "White trash" epithets has been extensively reported in African-American culture. Source: Internet
Wray, Not Quite White (2006) pp. 79, 102 History The term White trash first came into common use in the 1830s as a pejorative used by house slaves against poor whites. Source: Internet