He managed to get off his boss free and didn't have to work this weekend.
Ему удалось избавиться от требований босса, и он не должен работать в эти выходные.
Definitions
The phrase 'get off (someone's) free' appears to be incomplete or possibly a mishearing or typo. A common phrase is 'get off scot-free,' which means to escape without punishment or consequences. If you meant a different phrase, please provide more context.