Wiktionary
shutting up
vb. (present participle of shut up English)
Usage examples of "shutting up".
The preliminaries to shutting up shop were well under way, with specimens and records and unused stores to be packed, with the propulsion unit of the landing craft to be checked.
Quilp encamped in the back parlour, having first put an effectual stop to any further business by shutting up the shop.
There's some as would think I needed shutting up, if they heard me speak so.