leave a bad taste in (your) mouth

if an experience leaves a bad taste in your mouth, you have an unpleasant memory of it.

I think we all felt that he'd been treated unfairly and it left a bad taste in people's mouths.

• wait a minute
• wait and see
• wait a second
• wait for the other shoe to drop
• wait in the wings
• wait on
• wait on hand and foot
• wait on someone
• wait on someone hand and foot
• wait on tables
• wait out
• wait out something
• wait someone out
• wait tables
• wake up and smell the coffee
• Wake up and smell the coffee!
• wake-up call
• wake up to
• wake up to something
• walk all over
• walk all over someone
• walk all over something
• walk and chew gum
• walk and chew gum at the same time
• walk a thin line