watch my dust

Idioms and Phrases

Also, watch my smoke . See how fast I am, or how quickly I'll succeed. For example, I'm going to turn that investment into my first million, just you watch my dust , or I'll make it, just watch my smoke . The first term alludes to the dust raised by a galloping horse, the second to the smoke generated by an engine. [ Colloquial ; late 1800s]