Wiktionary
scrubbing in
vb. (present participle of scrub in English)
Wikipedia
Scrubbing In (TV series)
Scrubbing In is an American reality television series that aired on MTV from October 24 until December 26, 2013. It chronicles a group of travel nurses who relocated from across the United States to Orange County, California, where they work in a hospital together. The series premiere acquired 673,000 viewers.
Usage examples of "scrubbing in".
She and Swindapa knelt beside it, scrubbing in the cold river water and then brushing their teeth.