General good wishes:
* "Hav a gut tsait" (pronounced: hahv ah goot tsayt) - This is the most common and straightforward way to say "have a good time."
* "Zolst dir gut hobn" (pronounced: zolst deer goot hovn) - This literally means "May you have good." It's a slightly more formal and well-wishing way to say "have a good time."
For a specific event:
* "Zolst dir gut zein" (pronounced: zolst deer goot zeyn) - This means "May you be well" and is often used for an event like a party or celebration.
* "Hob a gutn shpas" (pronounced: hov ah gootn shpas) - This means "Have a good time" specifically for something enjoyable or fun.
For a more personal touch:
* "Hob a gutn tag" (pronounced: hov ah gootn tag) - This means "Have a good day" and can be used even if the event is in the evening.
* "Gezunt un freilekh" (pronounced: gezunt un freylekh) - This means "Healthy and happy" and is a good option if you want to wish someone well in general.
The best choice for you will depend on the specific situation and your relationship with the person.