Idioms with roots backstage or on the boards.
6 idioms in this category
"To take credit for someone else's idea, or to upstage them."
Still a Mystery"A traditional way to wish a performer good luck right before they go on stage."
Likely Origin (Disputed)"To accept the unpleasant consequences of your actions."
Well Documented"Keep quiet; don't reveal a secret."
Well Documented"At the centre of public attention."
Well Documented"To go through a series of demanding or tedious steps to achieve something."