Crossword puzzle clue "come back sound"

Come-back sound

"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

"Come one, come ___!"

Show tune with the repeated line "Come to me, come to me!"

"Come one, come all" callers

"O Come, O Come Emmanuel," e.g.