a gentle warning or light punishment.

I got a slap on the wrist for arriving late again.

Usage notes: sometimes used in the form slap someone on the wrist:

Instead of firing him, she only slapped him on the wrist.

• dry up
• ducking and diving
• duck out
• duck out of
• duck out of somewhere
• due to
• due to something
• duke it out
• dust off
• dust settles
• dust something off
• dust yourself off
• Dutch courage
• Dutch treat
• duty bound to
• duty bound to do something
• dyed-in-the-wool
• each own
• each their own
• each to her own
• each to hisown
• each to own
• eagle-eyed
• early bird catches the worm.
• early on