Definition of wet the baby's head in English:

wet the baby's head

British informal Celebrate a baby’s birth with a drink, typically an alcoholic one.
More example sentences
  • No, not that, I did that with Muriel, John and Gus last night - you know, went for a drink to celebrate wetting the baby's head.
  • We definitely wet the baby's head afterwards, then the team came back to our house.
  • Many of you may want to help her wet the baby's head at the plush casual eatery next to Bar 38, off Coney Street, which is opening this weekend.
See parent entry: wet

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