Wiktionary
vb. 1 (context transitive English) to dust, to clean by dusting 2 (context intransitive English) to attack or renounce
Wikipedia
Dust Up was a Canadian reality television series produced by Paperny Entertainment and Prairie Threat Entertainment that aired on History Television. The series follows three crop dusters in Nipawin, Saskatchewan (73-year-old Bud Jardine, his son Brennan Jardine, and rookie pilot Travis Karle) as they compete for work and mount sometimes-perilous crop dusting expeditions. Each plane is outfitted with four cameras to capture the action.
Usage examples of "dust up".
The air became cleaner as they climbed the stairs, though each crash in the dungeons blasted more dust up the staircase.
Pilar asked him and picked some dust up from the fire and blew it off the palm of her hand.
Why, Clements is a honest miner, the old jackass, and he panned that there dust up in the hills.