English

Verb

have a good one ‎(third-person singular simple present has a good one, present participle having a good one, simple past and past participle had a good one)

1. (idiomatic) To enjoy an event or occasion, especially a holiday or one's birthday.

   You're turning nineteen tomorrow? I hope you have a good one!

2. formula used when parting.

Usage notes

• have a good one is a commonly spoken valediction, typically spoken by service employees or clerks to customers at the end of a transaction, particularly in North America.

Synonyms

• (parting formula): have a nice day, goodbye