let slide

verb4

1. •
   To let go; to allow; to release; to pass over without action.

   • The police officer let the ticket slide when she found her brother-in-law's car illegally parked.
   • The administrator let the minor infraction slide with only a disapproving look.
2. •
   To pass out of one's thought as not being of any consequence.
3. •
   To tolerate a violation of a norm from.

   • The judge let me slide on the speeding, but not on a $200 seat-belt violation.
4. •
   To allow the condition of something to deteriorate due to negligence or apathy.

   • He let the farm slide after inheriting it from his father.