Idiom
leave in the dustleave (someone/something) in the dust
1.
to move quickly away from someone or something.
If a big truck bears down on you from behind, this powerful car can leave it in the dust.
2.
to replace someone or something with something new.
This new computer virus left last year's killer virus in the dust.
leave somebody/something in the ˈdust
(American English) leave somebody/something far behind: The four-minute mile barrier has been left in the dust by a generation of faster runners.In the local elections, Jackson won easily, leaving all other candidates in the dust.