Crossword puzzle clue "okay back to work"

"Okay, okay, I get it"

Opus ___ (Catholic teaching also called "the Work, work work work work")

"Okay, back to work"

"Push 'em back! Push 'em back! Way back!"?

Instrument often used in a flashback...back...back...back... *camera pans up everything goes blurry

Back-to-back-to-back championships

On the back at work, it's good; on the backside at work, it's bad

Work, work, work