if food or drink is on the house in a bar or restaurant, it is provided free by the owner.

We had to wait for a table so they gave us all gin and tonics on the house.

• put oar in
• put off stride
• put off their stride
• put off the scent
• put on a brave face
• put on a brave front
• put on a collision course
• put on a front
• put on a pedestal
• put on edge
• put on hold
• put on ice
• put on the back burner
• put on the dog
• put on the line
• put on the map
• put on the right track
• put on the shelf
• put on the spot
• put out feelers
• put out of action
• put out of mind
• put out of misery
• put out of their misery
• put out of your mind