adjective
- very inexpensive: The house may need a lot of work, but it was dirt-cheap.
adverb
- cheaply: They got it dirt-cheap.
adjective, adverb
- informal at an extremely low price
Very inexpensive, as in Their house was a real bargain, dirt cheap. Although the idea dates back to ancient times, the precise expression, literally meaning “as cheap as dirt,” replaced the now obsolete dog cheap. [Early 1800s]