give (something/someone) a bad name

to cause people to lose respect for something or someone.

A few badly behaved football fans give all football supporters a bad name.

• mile a minute
• mile away
• mile off
• milk of human kindness
• millstone around neck
• millstone around your neck
• mince words
• mince your words
• mind-blowing
• mind boggles
• mind boggles.
• mind-boggling
• mind candy
• mind goes blank
• mind is a blank
• mind is on
• mind is on something
• mind of own
• mind of your own
• mind over matter
• Mind own business!
• mind p's and q's
• mind-reader
• Mind step.
• mind the store