pay (someone) back in (their) own coin

British & Australian, old-fashioned

to treat someone in the same bad way that they have treated you.

I decided to pay her back in her own coin and refuse to help her.

• I've never ... something in all my days!
• Ivy League
• I wasn't born yesterday!
• I would not wish on
• I would not wish on someone
• I would not wish something on
• I would not wish something on someone
• I wouldn't put it past
• I wouldn't put it past someone
• I wouldn't touch someone with a barge pole.
• I wouldn't touch something with a barge pole.
• I wouldn't touch with a barge pole.
• I wouldn't trust as far as I could throw .
• I wouldn't trust as far as I could throw them.
• I wouldn't trust someone as far as I could throw .
• I wouldn't trust someone as far as I could throw them.
• I wouldn't wish on my worst enemy.
• I wouldn't wish on your worst enemy.
• I wouldn't wish something on my worst enemy.
• I wouldn't wish something on your worst enemy.
• jacked up on
• jacked up on something
• jack of all trades
• Jack the Lad
• jack up