let the side down

Meaning

1. to fail to give your friends, family, etc. the help and support they expect, or to behave in a way that makes them disappointed

From the same entry

• come down on one side of the fence or the other
• from side to side
• get on the right side of
• have on your side
• not leave side
• on all sides
• on the big, small, high, side
• on the other side of the fence
• on the right side of 40, 50
• on the side
• on one side
• be on side