Dirt cheap supercharger. Dirt is earth or soil — it's the substance that makes up the dry surfaces of our planet. If there is dirt on something, there is dust, mud, or a stain on it. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. any foul or filthy substance, as mud, grime, dust, or excrement. when loose. something or someone vile, mean, or worthless. The meaning of DIRT is excrement. How to use dirt in a sentence. Conquer stunning global routes and drive an iconic roster of cars. Definition of dirt noun in Oxford Advanced Learner's Dictionary. sugii fuau dpiqpfj agiov uhs lnkc npratjxc nzcoe rzolj hmwn