It's a bad sack will abide no clouting.

Understand the thought

Meaning in plain English

Something that permits no repair may be difficult to keep useful. The sack-and-patching image values room for correction, without making every proposed change good or blaming someone for a limit they cannot alter.

What the words are saying

The sack is judged by whether it will bear clouting, understood here as patching in the comparison. Figuratively, an arrangement that cannot accommodate any correction may become difficult to maintain when a problem appears. That can invite a practical question about what kind of revision is possible and who can make it. Not every patch will help, and some things need replacement or protection from an unsuitable intervention. Applied to people, the saying should not demand unquestioning acceptance of criticism. Its useful point is the value of a workable route to repair rather than a judgement that resistance to any particular change proves a defect.

Everyday example

A club chooses a reusable notice layout that allows dates to be corrected, rather than a format that must be discarded whenever a small detail changes.

When to use it

Use it when maintaining something depends on allowing suitable correction or repair.

Agent-assisted editorial interpretation. This explains the words; it does not by itself verify their author or earliest origin.