Meanings
From last (“tool for shaping shoes”), related to the Latin phrase sutor, ne ultra crepidam.
Do not criticise matters outside your field of expertise; mind your own business.
Example Sentences
1
He is constantly offering unsolicited advice to his colleagues, but he should remember the saying 'cobbler, keep to your last'.
2
The CEO should focus on making business decisions rather than meddling with the marketing team - cobbler, keep to your last.
3
The teacher should stick to teaching and not try to act as a counselor - cobbler, keep to your last.
4
The plumber should concentrate on fixing the pipes and not try to advise the homeowner on interior decoration - cobbler, keep to your last.
5
The politician should focus on legislation and not try to interfere in judicial matters - cobbler, keep to your last.