The phrase is most common in the UK and might be less familiar in other English-speaking countries. When I used 'swing the lead' in the US, people were confused.
Pro Tip 2/3
Negative Connotation
Using this phrase suggests a person is dishonest or lazy in their work ethics. The team accused Paul of trying to swing the lead on the project.
Pro Tip 3/3
Workplace Context
It's often used to describe someone avoiding work at their job - use carefully as it's a sensitive accusation. Our manager is investigating who's been swinging the lead.