fast and loose

Translations
безответственно
He plays fast and loose with the rules.
Он безответственно относится к правилам.
Definitions
Behaving in a reckless, irresponsible, or deceitful manner, especially by ignoring rules or commitments; often used to describe someone who is not honest or reliable in their actions or relationships.
Words
fast

adjective
быстрый
and

conjunction
и
loose

adjective
свободный