Trailer trash (or trailer park trash) is a erogatory North American English term for people of low socio-economic standing. The term originates from the belief that those of low standing within society often reside in trailers or mobile homes, especially in trailer parks. Because trailers often provide housing at a lower cost than conventional foundation-built houses, and some trailers have few amenities, there is a popular cultural conception that those who live in trailer parks are usually only those who are too poor to afford anything else. Although trailer parks have a high density compared to other rural or suburban housing, they are usually created on large tracts of undeveloped land in rural or suburban areas.