chair up
Advanced (C1) informal
To become the person in charge who leads a meeting or organisation.
"After the previous chair resigned, nobody wanted to chair up until the crisis had passed."
Hear it in context
BIG NEWS From Dr. Fuqua
Smarter Every Day 2 · 1:52
You'll pull that chair up here.
TRAPPED IN DETENTION for 24 Hours
Jordan Matter · 8:29
I had to scoop my chair up and save it
Week in Review: Trump Clashes With Pope Leo; CPS and CTU Reach May Day Deal
WTTW · 13:36
And, you know, she was still the chair up until,