"Would you all just shut up for one minute and listen to me?"
If you've already tried this and it still hasn't worked, shut up for another year or two.
If he just shut up for a while and let his writing do the talking, he'd find the quality would return.
"It also appears to be the only way to shut you up for any amount of time."
"I couldn't get him to shut up for the life of me."
But shut up for a bit will you, I've got to get on.
"Can you two not shut up for a few seconds?"
She realized it must have been shut up for some time.
You will shut me up in this place, for my safety.
Which means it's going to be hard to get me to shut up for a while about it.